by ARSOV,EMIL S.,BG, GOCEV,VESKO KH.,BG, STANCHEVA,VALENTINA R.,BG, VUCHKOV,ALEKSAND'R K.,BG, PETKOV,DIMIT'R P.,BG, LAZAROV,NIKOLAJJ D.,BG, POPOV,IVAJJLO D.,BG
Year of Publication 15.02.1989