by KALCHEV,STOJAN V, POPOV,TODOR V, MITEV,STEFAN P, VACOVA,MELAGIJA V, KOLEV,KONSTANTIN G, GUZGUNOV,ANTON G, MOMERIN,KHRISTO A, RADOMIROV,RASHKO K
Year of Publication 15.05.1987

by KALCHEV,STOJAN V, TUMBEV,PETR I, PASHAMOV,PETKO G, KOLEV,KONSTANTIN G, KARTALOV,GEORGI P, MOMERIN,KHRISTO A, DIMITROV,IVAN D, GUZGUNOV,ANTON G
Year of Publication 15.08.1986

by KALCHEV,STOJAN V, KISOV,VESELIN D, GEORGIEV,GEORGI L, KOSTOV,MLADEN L, MARKOV,LJUBEN I, KOLEV,KONSTANTIN G, GUZGUNOV,ANTON G, RADOMIROV,RASHKO K
Year of Publication 15.01.1985

by KALCHEV,STOJAN V, KISOV,VESELIN D, GEORGIEV,GEORGI L, KOSTOV,MLADEN L, MARKOV,LJUBEN I, KOLEV,KONSTANTIN G, GUZGUNOV,ANTON G, KHADZHIDIMITROV,DIMITR I, RADOMIROV,RASHKO K
Year of Publication 15.01.1985

by KALCHEV,STOJAN V, KISOV,VESELIN D, GEORGIEV,GEORGI L, GOCHEVA,BISTRA S, CANKOV,LJUBOMIR D, GELEVA,PENKA S, KOSTOV,MLADEN L, MARKOV,LJUBEN I, KOLEV,KONSTANTIN G, GUZGUNOV,ANTON G, RADOMIROV,RASHKO K
Year of Publication 15.08.1985

by BOZHINOV,BOZHIDAR A, TOPALOV,TIKHOMIR A, MITEV,STEFAN P, DOBREV,DOBRI D, VELICHKOV,ANTON I, VUTOV,LJUBOMIR A, KOLEV,KONSTANTIN G, GUZGUNOV,ANTON G, KALCHEV,STOJAN V, POPOV,TODOR V, CANKOV,LJUBOMIR D, MOMERIN,KHRISTO A, MANDALIEV,GEORGI M, KHADZHIDIMITROV,DIMITR I, RADOMIROV,RASHKO K
Year of Publication 14.03.1987