RUSSIAN BOOK VLADIMIR BRON'S 90 CHESS PROBLEMS & 160 ENDGAME STUDIES 1969

RUSSIAN BOOK KOFMAN CHESS PROBLEMS BETWEEN 1974-76 1978

BULGARIAN BOOK PETKO PETKOV SELECTED CHESS PROBLEMS 1982

RUSSIAN BOOK HERBSTMAN CHESS ENDGAME STUDIES 1964

RUSSIAN BOOK KUZNETSOV CHESS ENDGAME STUDIES 1980

BULGARIAN BOOK KRIKOR HAYRABEDIAN CHESS PROBLEMS MINIATURES 1980

RUSSIAN BOOK MELNITCHENKO 1989 CHESS : 2 SIDES OF CREATIVITY PROBLEMS & ENDGAME

UKRAINIAN BOOK TIGRAN GORGIEV BONDARENKO CHESS ENDGAME STUDIES IN UKRAINA 1966