TY - JOUR AU - E. Pap TI - Extension of null-additive set functions on algebra of subset JO - Novi Sad Journal of Mathematics PY - 2001 SP - 9 EP - 13 VL - 31 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NSJOM_2001_31_2a_1/ ID - NSJOM_2001_31_2a_1 ER -