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@article{DE_1974_10_4_a21, author = {V. N. Laptinskii}, title = {Estimates of the solutions of the system $x''' =A(t)x$}, journal = {Differencialʹnye uravneni\^a}, pages = {755--758}, publisher = {mathdoc}, volume = {10}, number = {4}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1974_10_4_a21/} }
V. N. Laptinskii. Estimates of the solutions of the system $x''' =A(t)x$. Differencialʹnye uravneniâ, Tome 10 (1974) no. 4, pp. 755-758. http://geodesic.mathdoc.fr/item/DE_1974_10_4_a21/