TY - JOUR AU - E. V. Kaygorodov TI - Hopfian completely decomposable torsion-free groups JO - Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika PY - 2013 SP - 24 EP - 28 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VTGU_2013_4_a2/ LA - ru ID - VTGU_2013_4_a2 ER -