@article{DE_1967_3_8_a7,
     author = {A. I. Reizi\c{n}\v{s}},
     title = {Classification of the singular points of linear systems of total differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1282--1291},
     publisher = {mathdoc},
     volume = {3},
     number = {8},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1967_3_8_a7/}
}