TY - JOUR AU - A. A. Golubkov TI - Spectrum of the Sturm--Liouville operator on a curve with parameters in the boundary conditions and discontinuity conditions for solutions JO - Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory PY - 2021 SP - 45 EP - 68 VL - 193 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/INTO_2021_193_a6/ LA - ru ID - INTO_2021_193_a6 ER -