TY - JOUR AU - N. G. Parvatov TI - Weakly central clones and completeness problem for them JO - Prikladnaâ diskretnaâ matematika PY - 2011 SP - 14 EP - 16 IS - 13 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PDM_2011_13_a5/ LA - ru ID - PDM_2011_13_a5 ER -