TY - JOUR AU - M. S. Syavavko TI - Fractional-analytic approximation of an evolution operator JO - Doklady Akademii Nauk PY - 1987 SP - 1065 EP - 1067 VL - 297 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1987_297_5_a9/ LA - ru ID - DAN_1987_297_5_a9 ER -