INDENYL AND FLUORENYL TRANSITION METAL COMPLEXES. VIII. SYNTHESIS, STRUCTURE AND PROPERTIES OF METAL CARBONYL DERIVATIVES OF AZAFLUORENES, INDOLE, CARBAZOLE AND THE CORRESPONDING ANIONS Article Nesmeyanov A.N., Ustynyuk N.A., Thoma T., Prostakov N.S., Soldatenkov A.T., Pleshakov V.G., Urga K., Ustynyuk Yu.A., Trifonova O.I., Oprunenko Yu.F. Journal of Organometallic Chemistry. Vol. 231. 1982. P. 5-24