TY - JOUR AU - Gera, Milan AU - Haščák, Alexander TI - Sixty years of Professor Valter Šeda JO - Czechoslovak Mathematical Journal PY - 1992 SP - 175 EP - 179 VL - 42 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1992.128315/ DO - 10.21136/CMJ.1992.128315 LA - en ID - 10_21136_CMJ_1992_128315 ER -