TY  - JOUR
AU  - A. G. Pinus
TI  - Calculus of conditional identities, and conditionally rational
JO  - Algebra i logika
PY  - 1998
SP  - 432
EP  - 459
VL  - 37
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1998_37_4_a3/
LA  - ru
ID  - AL_1998_37_4_a3
ER  -