@article{ZVMMF_2014_54_3_a6,
     author = {S. V. Kurochkin},
     title = {Indexing of eigenvalues of boundary value problems for {Hamiltonian} systems of ordinary differential equations},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {425--429},
     year = {2014},
     volume = {54},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2014_54_3_a6/}
}