@article{VMUMM_2021_4_a9,
     author = {A. N. Korolev},
     title = {Simplification of the calculation of characteristic frequencies over nonuniform scales},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {51--55},
     year = {2021},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2021_4_a9/}
}