TY - JOUR AU - N. S. Goncharov TI - Eigenvalues and eigenfunctions of the Laplace operator in a square and in a circle with a Wentzel boundary condition JO - Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika PY - 2022 SP - 17 EP - 22 VL - 14 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VYURM_2022_14_3_a1/ LA - ru ID - VYURM_2022_14_3_a1 ER -