by GETOV,IVAN V, TIMOFEEV,BORIS A, KAJJNAKCHIEV,NIKOLA I, MIKOTIN,EVGENIJJ E, GRISHIN,EVGENIJJ K, TONCHEV,KNCHO I, TARASOV,IVAN KH, NIKOLOV,IVAN D, TRIFONOV,TODOR K, GMZOV,NIKOLAJJ KH, KRJUCHATOV,VALERIJJ A, BONCHEV,STILJAN B
Year of Publication 14.08.1987

by BURAKOV,SAVELIJJ L, GETOV,IVAN V, JANCHENKO,VLADIMIR N, NIKIFOROV,TODOR I, KAJJNAKCHIEV,NIKOLA I, MIKOTIN,EVGENIJJ E, GRISHIN,EVGENIJJ K, TARASOV,IVAN KH, KRJUCHATOV,VALERIJJ A
Year of Publication 16.07.1985