TY - JOUR AU - Gunnar Dirdal TI - Congruence properties for a class of arithmetical functions. JO - Mathematica Scandinavica PY - 1976 SP - 247 EP - 261 VL - 38 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MS2_1976__38_166471/ ID - MS2_1976__38_166471 ER -