@article{IVM_1967_2_a12,
     author = {V. A. Churikov},
     title = {Conditions for the existence and preservation of the sign of the {Green's} function of a~two-point boundary value problem},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {93--99},
     publisher = {mathdoc},
     number = {2},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1967_2_a12/}
}