TY - JOUR AU - P. V. Petrashen AU - F. N. Chukhovskii TI - Restoration of the phase of an x-ray wave diffracted by a layered JO - Doklady Akademii Nauk PY - 1989 SP - 105 EP - 109 VL - 309 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1989_309_1_a24/ LA - ru ID - DAN_1989_309_1_a24 ER -