by PETROV PETER DIMITROV, NEMETSCHEK ALFRED EMMERICH, SAMOKOVLIISKI DAVID ALBERTO, MAKSIMOV EMIL ASSENOV, IVANOV IVAN ILIEV
Year of Publication 01.07.1987

by EMIL ASSENOV MAKSIMOV, ALFRED EMMERICH NEMETSCHEK, IVAN ILIEV IVANOV, PETER DIMITROV PETROV, DAVID ALBERT SAMOKOVLIISKI
Year of Publication 30.11.1982

by EMMERICH,. NEMETSCHEK,ALFRED, ASSENOV MAKSIMOV,EMIL, ALBERT,. SAMOKOVLIISKI,DAVID, DIMITROV PETROV,PETER, ILIEV IVANOV,IVAN
Year of Publication 18.01.1979

by SAMOKOVLIISKI, DAVID ALBERT, PETROV, PETER DIMITROV, IVANOV, IVAN ILIEV, MAKSIMOV, EMIL ASSENOV, NEMETSCHEK, ALFRED EMMERICH
Year of Publication 19.12.1978

by IVANOV, IVAN ILIEV, SOFIJA, BG, SAMOKOVLIISKI, DAVID ALBERT, PETROV, PETER DIMITROV, MAKSIMOV, EMIL ASSENOV., PANAGJURISCHTE, BG, NEMETSCHEK, ALFRED EMMERICH., SOFIJA, BG
Year of Publication 21.04.1983