TY  - JOUR
AU  - J. Płonka
TI  - On the number of polynomials of a universal algebra, IV
JO  - Colloquium Mathematicum
PY  - 1972
SP  - 11
EP  - 14
VL  - 25
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-25-1-11-14/
DO  - 10.4064/cm-25-1-11-14
LA  - en
ID  - 10_4064_cm_25_1_11_14
ER  -