TY - JOUR AU - Kříž, Igor TI - Iterated countable products and sums of the infinite cyclic group JO - Commentationes Mathematicae Universitatis Carolinae PY - 1986 SP - 491 EP - 497 VL - 27 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_1986__27_3_a7/ LA - en ID - CMUC_1986__27_3_a7 ER -