TY - JOUR AU - Yu. P. Chuburin TI - Floquet asymptotics of solutions of the Schr\"odinger equation in the case of a~semi-infinite crystal JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1988 SP - 472 EP - 478 VL - 77 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1988_77_3_a13/ LA - ru ID - TMF_1988_77_3_a13 ER -