@article{MZM_2000_67_3_a5,
author = {I. M. Nabiev},
title = {Multiplicities and relative position of eigenvalues of a~quadratic pencil of {Sturm{\textendash}Liouville} operators},
journal = {Matemati\v{c}eskie zametki},
pages = {369--381},
year = {2000},
volume = {67},
number = {3},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/MZM_2000_67_3_a5/}
}
I. M. Nabiev. Multiplicities and relative position of eigenvalues of a quadratic pencil of Sturm–Liouville operators. Matematičeskie zametki, Tome 67 (2000) no. 3, pp. 369-381. http://geodesic.mathdoc.fr/item/MZM_2000_67_3_a5/
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