TY - JOUR AU - D. L. Berman TI - A~certain interpolational criterion for the continuity of a~periodic function with bounded second variation JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1973 SP - 14 EP - 18 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1973_3_a2/ LA - ru ID - IVM_1973_3_a2 ER -