TY - JOUR AU - O'Neill, John D. TI - On summands of direct products of Abelian groups JO - Commentationes Mathematicae Universitatis Carolinae PY - 1983 SP - 407 EP - 413 VL - 24 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_1983__24_3_a1/ LA - en ID - CMUC_1983__24_3_a1 ER -