CYCLIZATION PROCESSES IN THE FRAGMENTATION OF THE MOLECULAR IONS OF N-(AZA-9-FLUORENYLIDENE)AMINES ArticleShevtsov V.K., Zakharov P.I., Zvolinskii V.P., Pleshakov V.G., Grigor'ev G.V., Prostakov N.S.Chemistry of Heterocyclic Compounds. Том 17. 1981. С. 83-89
MASS-SPECTROMETRIC STUDY OF NITRO DERIVATIVES OF 2(4)-AZAFLUORENES AND 2(4)-AZAFLUORENONES ArticleShevtsov V.K., Zakharov P.I., Zvolinskii V.P., Pleshakov V.G., Grigor'ev G.V., Prostakov N.S., Zainul Abedin M.Chemistry of Heterocyclic Compounds. Том 17. 1981. С. 697-702