TY  - JOUR
AU  - I. I. Valutsè
TI  - Universal algebras with proper, but not permutable, congruences
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1963
VL  - 18
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1963_18_3_a3/
LA  - ru
ID  - RM_1963_18_3_a3
ER  -