@article{DAN_1961_138_1_a9,
     author = {I. S. Lyubchenko},
     title = {Newton's method as a basis for solving approximately the boundary-value problem for a non-linear second-order 
},
     journal = {Doklady Akademii Nauk},
     pages = {39--42},
     publisher = {mathdoc},
     volume = {138},
     number = {1},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_138_1_a9/}
}