TY - JOUR AU - Bělohlávek, Radim TI - A characterization of congruence classes of quasigroups JO - Mathematica slovaca PY - 2000 SP - 377 EP - 380 VL - 50 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MASLO_2000__50_4_a1/ LA - en ID - MASLO_2000__50_4_a1 ER -