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@article{DE_1984_20_9_a25, author = {V. I. Mironenko}, title = {Reflecting function and classification of periodic differential systems}, journal = {Differencialʹnye uravneni\^a}, pages = {1635--1638}, publisher = {mathdoc}, volume = {20}, number = {9}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1984_20_9_a25/} }
V. I. Mironenko. Reflecting function and classification of periodic differential systems. Differencialʹnye uravneniâ, Tome 20 (1984) no. 9, pp. 1635-1638. http://geodesic.mathdoc.fr/item/DE_1984_20_9_a25/