TY - JOUR AU - Yu. E. Karpeshina TI - Spectrum and eigenfunctions of the Schr\"odinger operator in three-dimensional space with point potential of the type of a~homogeneous two-dimensional lattice JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1983 SP - 414 EP - 423 VL - 57 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1983_57_3_a8/ LA - ru ID - TMF_1983_57_3_a8 ER -