TY  - JOUR
AU  - Jaroslav Ježek
TI  - Primitive classes of algebras with unary and nullary operations
JO  - Colloquium Mathematicum
PY  - 1969
SP  - 159
EP  - 179
VL  - 20
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-20-2-159-179/
DO  - 10.4064/cm-20-2-159-179
LA  - en
ID  - 10_4064_cm_20_2_159_179
ER  -