Prostakov N.S. - list of publications

MASS-SPECTROMETRY STUDY OF 9-AMINO AND 9-ALKYL(DIALKYL, SPIRO)-1 AND 4-AZAFLUORENES

Article

ZAKHAROV P.I., CORDOVA G.BM., SHALIMOV V.P., KROKHIN A.V., PROSTAKOV N.S.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1987. P. 1241-1246

1-(FLUOREN-2-YL)-2-(2-AZAFLUOREN-3-YL)ETHENE AND 1-(FLUOREN-2-YL)-2-(2H,2-METHYLINDENO[2,3-C]PYRIDINE)ETHENE

Article

Prostakov N.S., Obynochnyi A.A., Murugova L.A.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 23. 1987. P. 544-547

CONDENSATION OF N-(P-NITROBENZYL)-10,10-DIMETHYL-9,10-DIHYDRO-10-SILA-2-AZAANTRACENIUMBROMIDE AND CORRESPONDING 9-OXODERIVATIVE WITH DIMETHYL ACETYLENE-DICARBOXYLATE

Article

PROSTAKOV N.S., VARLAMOV A.V., NAZRUL I., SAKSENA N., NENDE D.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1987. P. 707-711

INVESTIGATION OF HINDERED INTERCONVERSION OF CENTRAL RING IN SUBSTITUTED 9,10-DIHYDROSILAAZAANTHRACENES BY DYNAMIC NMR

Article

ALIEV A.E., FOMICHEV A.A., VARLAMOV A.V., PROSTAKOV N.S.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1987. P. 1577-1577

MASS SPECTROSCOPIC STUDY OF 9-AMINO- AND 9-ALKYL(DIALKYL, SPIRO)-1-AND 4-AZAFLUORENES

Article

Zakharov P.I., Shalimov V.P., Krokhin A.V., Prostakov N.S., Montenegro Kordova G.B.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 23. 1987. P. 992-997

DYNAMIC NMR STUDY OF THE RESTRICTED INTERCONVERSION OF THE CENTRAL RING IN 9,10-DIHYDROSILAAZAANTHRACENES

Article

Aliev A.E., Fomichev A.A., Varlamov A.V., Prostakov N.S.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 23. 1987.

CONDENSATION OF N-(P-NITROBENZYL)-10,10-DIMETHYL-9,10-DIHYDRO-10-SILA-2-AZAANTHRACENE BROMIDE AND ITS 9-OXO DERIVATIVE WITH ACETYLENEDICARBOXYLIC ESTER

Article

Prostakov N.S., Varlamov A.V., Islam N., Saksena N., N'ende D.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 23. 1987. P. 588-591

1-METHYL(BENZYL)-2,5-DIMETHYL-4-N-[ARYL(ALKYL)AMINO]PIPERIDINES AND THEIR ACYL DERIVATIVES

Article

Kuznetsov V.V., Gaivoronskaya L.A., Fomichev A.A., Romero R.M., Prostakov N.S.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 23. 1987. P. 779-782

MASS-SPECTROMETRY OF 2,5-DIMETHYL-4-BENZOYLPYRIDINE AND 2,5-DIMETHYL-4-BENZYLPYRIDINE DERIVATIVES

Article

ZAKHAROV P.I., GUSAROV A.N., SOLDATENKOV A.T., KRAPIVKO A.P., KULIKOVSKAYA N.A., PROSTAKOV N.S.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1987. P. 810-816

MASS-SPECTROMETRIC STUDY OF BENZOPYRIDOSILAAZEPINES AND -AZEPINONES

Article

Shevtsov V.K., Varlamov A.V., Poshivalov S.G., Simonova L.A., Prostakov N.S.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 22. 1986. P. 577-580

CONDENSATION OF PYRIDO[1,2-A]BENZIMIDAZOLE AND TETRAHYDROPYRIDOL[1,2-A]BENZIMIDAZOLE WITH DIMETHYLACETYLENEDICARBOXYLATE

Article

PROSTAKOV N.S., VARLAMOV A.V., SHENDRIK I.V., KRAPIVKO A.P., GOLOVTSOV N.I.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 239-241

ALPHA-PHENYLISOCINCHOMERIC AND 4-AZAFLUORENE-3-CARBOXYLIC ACID

Article

PROSTAKOV N.S., RANI S.S., MIKHAILOVA N.M., SERGEEVA N.D.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 645-648

BROMINATION OF 10,10-DIMETHYL-10-SILA-2-AZAANTHRONE

Article

VARLAMOV A.V., POLOSIN V.M., PROSTAKOV N.S.

ZHURNAL OBSHCHEI KHIMII / Russian Journal of General Chemistry. MEZHDUNARODNAYA KNIGA / ИКЦ "Академкнига". Vol. 56. 1986. P. 2408-2412

CONDENSATION OF N-(PIPERIDYLIDENE-4)ARYLAMINES WITH ACETYLENEDICARBOXYLIC ESTERS

Article

Kuznetsov V.V., Gaivoronskaya L.A., Murugova L.A., Prostakov N.S.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 22. 1986. P. 755-758

1,2,5-TRIMETHYL-4-(P-HYDROXYARYL)-Δ3-TETRAHYDROPYRIDINES AND THEIR SPATIAL STRUCTURE

Article

Rezakov V.A., Das S.K., Fomichev A.A., Prostakov N.S.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 22. 1986. P. 1107-1110

ARYLATION, ALKYLATION, REDUCTION AND PYROLYSIS OF 1H-1-METHYLINDENO[2,1-B]PYRIDINE

Article

SOLDATENKOV A.T., BAGDADI M.V., FEDOROV V.O., PROSTAKOV N.S.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 1212-1214

SYNTHESIS BASED ON 3-METHYL-2-PHENYL-5-(3-METHYL-2-PHENYL-3,4-DEHYDROPIPERIDYL-6)PYRIDINE.2. PHENYLNICOTINIC AND 4-AZAFLUORENONE-2-CARBOXYLIC ACID

Article

PROSTAKOV N.S., ELISEEVA I.V., KHABIB K.B., KIRILLOVA L.M., ALIEV A.E.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 813-817

SYNTHESIS OF SUBSTITUTED PYRIDONES-2 AND 4-AZAFLUORIDONES-3

Article

PROSTAKOV N.S., SAKHA S.R., MIKHAILOVA N.M., SHEVTSOV V.K., SERGEEVA N.D.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 939-942

CONDENSATION OF 4-AZAFLUORENE WITH Γ-BUTYLENE GLYCOL AND GLYCERIN

Article

Prostakov N.S., Shalimov V.P., Kruglyak E.V., Montenegro Cordova G.B.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 22. 1986. P. 640-642

PMR SPECTROSCOPY OF PIPERIDINE CYCLE CONFORMATION IN 1,2,5-TRIMETHYL-4-PHENYL(TRIORGANOSILYL)-PIPERIDIN-4-OL ISOMERS

Article

FOMICHEV A.A., GOTOVTSOV N.I., REZAKOV V.A., VARLAMOV A.V., PROSTAKOV N.S.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 1496-1502

CONDENSATION OF N-(PIPERIDYLYDENE-4)ARYLAMINES WITH DIMETHYLACETYLENEDICARBOXYLATE

Article

KUZNETSOV V.V., GAIVORONSKAYA L.A., MURUGOVA L.A., PROSTAKOV N.S.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 943-946

REACTION OF PYRIDO[1,2-A]BENZIMIDAZOLE AND TETRAHYDROPYRIDO[1,2-A]BENZIMIDAZOLE WITH ACETYLENEDICARBOXYLIC ESTER

Article

Prostakov N.S., Varlamov A.V., Shendrik I.V., Krapivko A.P., Golovtsov N.I.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 22. 1986. P. 192-194

SYNTHESIS AND STRUCTURE OF 1-BENZOYL-2,5-DIMETHYL- AND 1,2,5-TRIMETHYL-4-ARYLPIPERIDEINS

Article

Borisova T.N., Sergeeva N.D., Espenbetov A.A., Yufit D.S., Varlamov A.V., Eliseeva I.V., Prostakov N.S.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 22. 1986. P. 970-976

SYNTHESIS AND STRUCTURE OF 1-BENZOYL-2,5-DIMETHYL-ARYLPIPERIDEINES AND 1,2,5-TRIMETHYL-4-ARYLPIPERIDEINES

Article

BORISOVA T.N., SERGEYEVA N.D., YESPENBETOV A.A., YUFIT D.S., VARLAMOV A.V., ELISEEVA I.V., PROSTAKOV N.S.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 1200-1206

1,2,5-TRIMETHYL-4-(PARA-HYDROXYARYL)PIPERIDEINES-3 AND THEIR SPATIAL STRUCTURE

Article

REZAKOV V.A., DAS S.K., FOMICHEV A.A., PROSTAKOV N.S.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 1367-1370

MASS-SPECTROMETRIC STUDY OF BENZOPYRIDOSILAAZEPINES AND BENZOPYRIDOSILAAZEPINONES

Article

SHEVTSOV V.K., VARLAMOV A.V., POSHIVALOV S.G., SIMONOVA L.A., PROSTAKOV N.S.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 704-707

Α-PHENYLISOCINCHOMERONIC AND 4-AZAFLUORENONE 3-CARBOXYLIC ACIDS

Article

Prostakov N.S., Rani S.S., Mikhailova N.M., Sergeeva N.D.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 22. 1986. P. 529-532

"ARYLIDENHYDRAZONO-2(4)-AZAFLUORENES

Article

PROSTAKOV N.S., KIRILLOVA L.M., KHANNA B.K., MURUGOVA L.A.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 248-253

CONDENSATION OF 4-AZAFLUORENE WITH 1,4-BUTANEDIOL AND GLYCERIN

Article

PROSTAKOV N.S., SHALIMOV V.P., MONTENEGROCORDOVA G.B., KRUGLYAK E.V.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 810-812

SYNTHESES OF SPIROAZIRIDINEFLUORENE, SPIROINDOXYLFLUORENE AND ESTERS OF BETA-AMINOPROPIONIC ACID, CONTAINING FRAGMENTS OF 4-AZAFLUORENE

Article

PROSTAKOV N.S., GAIVORONSKAYA L.A., SARKAR S.K., ZAKHAROV V.F., DURBAZHEVA N.M.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1986. P. 895-897

PREPARATION OF SPIROAZIRIDINEFLUORENE, SPIROINDOXYL-FLUORENE, AND Β-AMINOPROPIONIC ACID ESTER WITH A 4-AZAFLUORENE FRAGMENT

Article

Prostakov N.S., Gaivoronskaya L.A., Sarkar S.K., Zakharov V.F., Durbazheva N.M.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 22. 1986. P. 710-713

ARYLATION, ALKYLATION, REDUCTION, AND PYROLYSIS OF 1H-1-METHYLINDENO[2,1-B]PYRIDINE

Article

Soldatenkov A.T., Bagdadi M.V., Fedorov V.O., Prostakov N.S.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 22. 1986. P. 980-982

SYNTHESIS STARTING FROM 3-METHYL-2-PHENYL-5-(3-METHYL-2-PHENYL-3,4-DEHYDROPIPERIDYL-6)PYRIDINE. 2-PHENYLDINICOTINIC AND 4-AZAFLUORENONE-2-CARBOXYLIC ACIDS

Article

Prostakov N.S., Eliseeva I.V., Habib H.B., Kirillova L.M., Aliev A.E.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 22. 1986. P. 642-646

SYNTHESIS AND SPECTRAL INVESTIGATIONS OF ALCOHOLS OF FLUORENE, ISOMERIC AZAFLUORENE AND INDENOQUINOLINE SERIES

Article

SARKAR S.K., PLESHAKOV V.G., GAIVORONSKAYA L.A., ZAKHAROV V.F., MURUGOVA L.A., PROSTAKOV N.S.

ZHURNAL ORGANICHESKOI KHIMII. MEZHDUNARODNAYA KNIGA / Санкт-Петербургская издательская фирма "Наука" Академиздатцентра РАН. Vol. 22. 1986. P. 1498-1504

SYNTHESIS OF SUBSTITUTED 2-PYRIDONES AND 4-AZA-3-FLUORIDONES

Article

Prostakov N.S., Rani S.S., Mikhailova N.M., Shevtsov V.K., Sergeeva N.D.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 22. 1986. P. 751-754

STRUCTURE DETERMINATION OF MONOSUBSTITUTED DIHYDROSILAAZAANTRONES BASED ON NMR SPECTRAL DATA

Article

PROSTAKOV N.S., FOMICHEV A.A., GOLOVISOV N.I., VARLAMOV A.V., ISLAM N., POLOSIN V.M.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1985. P. 1532-1535

SYNTHESIS OF SPIRO COMPOUNDS WITH 3-METHYL-2-AZAFLUORENE, INDAN, PYRAZOLINE, AND CYCLOPROPANE FRAGMENTS ON THE BASIS OF 3-METHYL-9-PHENYLETHYNYL-2-AZAFLUOREN-9-OL

Article

Prostakov N.S., Makuli M., Mikhailova N.M., Abubakr H., Sergeeva N.D., Obynochnyi A.A.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 21. 1985. P. 449-452

PMR SPECTRA AND CONFORMATIONS OF CIS-ISOMERS AND TRANS-ISOMERS OF N-SUBSTITUTED 2,5-DIMETHYL-4-PIPERIDINES

Article

PROSTAKOV N.S., FOMICHEV A.A., GOLOVTSOV N.I., REZAKOV V.A., VARLAMOV A.V.

ZHURNAL ORGANICHESKOI KHIMII. MEZHDUNARODNAYA KNIGA / Санкт-Петербургская издательская фирма "Наука" Академиздатцентра РАН. Vol. 21. 1985. P. 2313-2320

MASS-SPECTROSCOPY OF NITROSUBSTITUTED DIHYDROSILAAZAANTHRONES

Article

SHEVTSOV V.K., VARLAMOV A.V., ISLAM N., PROSTAKOV N.S.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1985. P. 534-538

SYNTHESIS OF SPIRANES WITH FRAGMENTS OF 3-METHYL-2-AZAFLUORENE AND INDANE, PYRAZOLINE, CYCLOPROPANE BASED ON 3-METHYL-9-PHENYLETHYNYL-2-AZAFLUOREN-9-OL

Article

PROSTAKOV N.S., MAKULI M., MIKHAILVOA N.M., ABUBAKR K., SERGEYEVA N.D., OBYNOCHNYI A.A.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1985. P. 539-541

3-AZAFLUORENES WITH NITROGEN-CONTAINING SUBSTITUENTS IN THE C9 POSITION

Article

Prostakov N.S., Shalimov V.P., Montenegro Cordova G.B.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 21. 1985. P. 1148-1150

NITROSUBSTITUTED AND AMINOSUBSTITUTED 10,10-DIMETHYL-10-SILA-2-AZAANTRONES

Article

PROSTAKOV N.S., ISLAM N., VARLAMOV A.V.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1985. P. 1528-1531

MASS-SPECTROMETRIC STUDY OF NITRO-SUBSTITUTED DIHYDROSILAAZAANTHRONES

Article

Shevtsov V.K., Varlamov A.V., Islam N., Prostakov N.S.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 21. 1985. P. 445-449

REACTION CHROMATO-MASS-SPECTROMETRY .11. POSSIBILITIES OF REACTION CHROMATO-MASS-SPECTROMETRY DURING DETERMINATION OF THE ALICYCLIC ALCOHOL STRUCTURE

Article

MIKAYA A.I., ANTONOVA A.V., ZAIKIN V.G., PROSTAKOV N.S.

ZHURNAL OBSHCHEI KHIMII / Russian Journal of General Chemistry. MEZHDUNARODNAYA KNIGA / ИКЦ "Академкнига". Vol. 55. 1985. P. 2597-2602

REACTION CHROMATO-MASS SPECTROMETRY .7. DEUTERIUM-EXCHANGE IN A CHROMATO-MASS SPECTROMETER COLUMN IN THE STUDY OF ALIPHATIC-ALCOHOLS AND CARBONYL-COMPOUNDS

Article

MIKAYA A.I., ANTONOVA A.V., ZAIKIN V.G., PROSTAKOV N.S.

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. Kluwer Academic Publishers-Plenum Publishers. Vol. 34. 1985. P. 748-751

NITRO- AND AMINO-SUBSTITUTED 10,10-DIMETHYL-10-SILA-2-AZAANTHRONES

Article

Prostakov N.S., Nazrul I., Varlamov A.V.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 21. 1985. P. 1261-1264

4-AZAFLUORENES WITH NITROGEN-CONTAINING SUBSTITUENTS AT C-9

Article

PROSTAKOV N.S., MONTENEGRO K.G., SHALIMOV V.P.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1985. P. 1395-1397

DETERMINATION AND PROOF OF STRUCTURE OF MONOSUBSTITUTED DIHYDROSILAAZANTHRONES ON THE BASIS OF PMR SPECTRA

Article

Prostakov N.S., Fomichev A.A., Golovtsov N.I., Varlamov A.V., Nazrul I., Polosin V.M.

Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 21. 1985. P. 1264-1267

CONDENSATION OF AZOMETHINES WITH ACETYLENE DICARBOXYLIC ESTER

Article

PROSTAKOV N.S., GAIVORONSKAYA L.A., ZAKHAROV V.F., KUZNETSOV V.V., DAS S.K., ALIYEV A.F.

Chemistry of Heterocyclic Compounds / KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII. Латвийский институт органического синтеза Латвийской академии наук. 1984. P. 366-371

AZAFLUORENOLS AND THEIR ANTIHISTAMINIC ACTIVITY

Article

VINOGRADOVA L.F., GAIVORONSKAYA L.A., KIRILLOVA L.M., BUKHABIB H., PROSTAKOV N.S.

Khimiko-Farmatsevticheskii Zhurnal. ООО Фолиум. Vol. 18. 1984. P. 170-173

Простаков Н.С.

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