TY - JOUR AU - È. L. Nagaev TI - State of a conduction electron in a crystal in the case of nonlocal interaction with elementary excitations JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1973 SP - 91 EP - 101 VL - 14 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1973_14_1_a8/ LA - ru ID - TMF_1973_14_1_a8 ER -