TY  - JOUR
AU  - Chajda, Ivan
TI  - Weak homomorphisms of systems of equations
JO  - Archivum mathematicum
PY  - 1977
SP  - 135
EP  - 140
VL  - 13
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ARM_1977__13_3_a1/
LA  - en
ID  - ARM_1977__13_3_a1
ER  -