%0 Journal Article %A Valeriy D. Luk'yanov %A Lyudmila V. Nosova %T Method of reference problems for obtaining approximate analytical solution of multiparametric Sturm--Liouville problems %J Nanosistemy: fizika, himiâ, matematika %D 2023 %P 321-327 %V 14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/NANO_2023_14_3_a3/ %G en %F NANO_2023_14_3_a3