TY  - JOUR
AU  - L. L. Maksimova
TI  - Craig's theorem in superintuitionistic logics and amalgamable
JO  - Algebra i logika
PY  - 1977
SP  - 643
EP  - 681
VL  - 16
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1977_16_6_a2/
LA  - ru
ID  - AL_1977_16_6_a2
ER  -