CONDENSATION OF 4-AZAFLUORENONE AND 9-PHENACYLYDENE-4-AZAFLUORENE WITH ACETOPHENONE - SYNTHESIS OF 3'-OXO-SPIRO-[4-AZAFLUOREN-9,1'-INDANE] СтатьяPROSTAKOV N.S., MAKULI M., MIKHAILOVA N.M., SERGEEVA N.D., OBYNOCHNYI A.A.Химия гетероциклических соединений. 1988. С. 1239-1242
INTERMEDIATE PRODUCTS OF THE REACTION OF CHROMIUM(VI) OXIDE WITH SUCCINIC ACID СтатьяZAITSEV B.E., ROZOVSKII V.G., DIDZHYULENE I.I., SKOMOROKHOVA A.I.ЖУРНАЛ НЕОРГАНИЧЕСКОЙ ХИМИИ. Том 33. 1988. С. 2284-2288