SYNTHESIS OF 4-AZAFLUORENE DERIVATIVES BASED ON 9-(3,6-DIPHENYLPYRIDAZIN-4-YL)-4-AZAFLUORENE ArticleMustafa A., Mikhailova N.M., Prostakov N.S.Chemistry of Heterocyclic Compounds. Vol. 29. 1993. P.. 1300-1303
ON THE GRAPH MODEL AND THE EQUIVALENCE OF BANYAN NETWORKS ArticleBasharin G.P., Zhukov O.V.Avtomatika i Telemekhanika. 1993. P.. 168-177