TY - JOUR AU - Tošić Ratko TI - On the class of constant-preserving Boolean functions over the finite Bollean algebras JO - Novi Sad Journal of Mathematics PY - 1980 SP - 197 EP - 203 VL - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NSJOM_1980_10_Nonea_24/ ID - NSJOM_1980_10_Nonea_24 ER -