. "1973-04-20" . "S\u00E9minaire International E. Galion (04 ; 1973 ; Dubrovnik, Yougoslavie)" . . "S\u00E9minaire International E. Galion (04 ; 1973 ; Dubrovnik, Yougoslavie)" . . "1973-04-13" . "1973-04-20" . "1973-04-13" . .