TY - JOUR AU - A. R. Chekhlov TI - Some classes of torsion-free abelian groups that are close to quasi-pure-injective groups JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1985 SP - 82 EP - 83 IS - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1985_8_a15/ LA - ru ID - IVM_1985_8_a15 ER -