TY - JOUR AU - Peral Alonso, Ireneo TI - A condition of Busemann-Feller type for the derivation of integrals of functions in the class Φ (L). JO - Collectanea mathematica PY - 1977 SP - 95 EP - 100 VL - 28 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CLTM_1977_1977_1_a5/ LA - en ID - CLTM_1977_1977_1_a5 ER -