@article{VMUMM_1988_6_a13,
     author = {V. P. Modenov},
     title = {A differential-parametric method for finding eigenvalues of the third boundary value problem for the {Sturm{\textendash}Liouville} operator},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {55--57},
     year = {1988},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1988_6_a13/}
}