@article{RM_1960_15_5_a17,
     author = {L. \`E. \`El'sgol'ts},
     title = {Boundary value problems for ordinary differential equations with deviating arguments},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1960},
     volume = {15},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1960_15_5_a17/}
}