TY - JOUR AU - K. Halkowska TI - Equational Theories of Varieties defined by P-compatible Identities of Boole'an Algebras JO - Beiträge zur Algebra und Geometrie PY - 1992 SP - 103 EP - 108 VL - 33 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/BAG_1992__33_138508/ ID - BAG_1992__33_138508 ER -