@article{IVM_1967_10_a2,
     author = {V. S. Videnskii},
     title = {The extension of {V.} {A.~Markov's} theorem to the zeros of two solutions of the differential equation},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {24--26},
     year = {1967},
     number = {10},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1967_10_a2/}
}