1. G.M. Ter-akopyan, A.S. Iljinov, Yu.Ts. Oganessian, A.O. Orlova, G.S. Popeko, S.P. Tretyakova, V.I. Chepigin, B.V. Shilov and G.N. Flerov, Nucl.Phys.A255 (1975) 509
2. Yu.Ts. Oganessian, A.S. Iljinov, A.G. Demin and S.P. Tretyakova, Nucl.Phys.A239 (1975) 353
3. G.N. Flerov, Yu.Ts. Oganessian, A.A. Pleve, N.V. Pronin and Yu.P.Tretyakov, preprint JINR-D7-9555, Dubna 1976
4. Yu.Ts. Oganessian, A.G. Demin, A.S. Iljinov, S.P. Tretyakova, A.A. Pleve, Yu.E. Penionzhkevich, M.P. Ivanov and Yu.P. Tretyakov, Nucl.Phys.A239 (1975) 157
5. Yu.Ts. Oganessian, Yu.P. Tretyakov, A.S. Iljinov, A.G. Demin, A.A. Pleve, S.P. Tretyakova, V.M. Plotko, M.P. Ivanov, N.A. Danilov, Yu.S. Korotkin and G.N. Flerov, preprint JINR-D7-8099, Dubna 1974; A.A. Pleve, Proc.Int.Summer School on Nucl.Phys., Predeal, Romania 1974 (to be published)