@article{MZM_1995_57_6_a7,
     author = {F. Zh. Sadyrbaev},
     title = {Remark on methods of estimating the number of solutions of nonlinear boundary value problems for ordinary differential equations},
     journal = {Matemati\v{c}eskie zametki},
     pages = {889--895},
     publisher = {mathdoc},
     volume = {57},
     number = {6},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1995_57_6_a7/}
}