TY  - JOUR
AU  - Pinus, A.G.
TI  - On the subsemilattices of first-order definable and openly first-order definable congruences of the congruence lattice of a universal algebra.
JO  - Sibirskij Matematicheskij Zhurnal
PY  - 2006
SP  - 865
VL  - 47
IS  - 4
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/item/SMZ_2006__47_4_54734/
LA  - en
ID  - SMZ_2006__47_4_54734
ER  -