TY - JOUR AU - Koubek, Václav TI - Large systems of independent objects in concrete categories. I JO - Czechoslovak Mathematical Journal PY - 1984 SP - 506 EP - 527 VL - 34 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1984.101978/ DO - 10.21136/CMJ.1984.101978 LA - en ID - 10_21136_CMJ_1984_101978 ER -