@article{RM_1976_31_6_a6,
     author = {A. B. Vasil'eva},
     title = {The development of the theory of ordinary differential equations with a~small parameter multiplying the highest derivative during the period 1966--1976},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {109--131},
     publisher = {mathdoc},
     volume = {31},
     number = {6},
     year = {1976},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1976_31_6_a6/}
}