TY - JOUR AU - A. N. Suprun TI - Methods of extending the class of operators of the theory of viscoelasticity JO - Doklady Akademii Nauk PY - 1977 SP - 1323 EP - 1326 VL - 236 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1977_236_6_a9/ LA - ru ID - DAN_1977_236_6_a9 ER -