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@article{MASLO_1984__34_4_a7, author = {Ha\v{s}\v{c}\'ak, Alexander}, title = {Integral equivalence between a nonlinear system and its nonlinear perturbation}, journal = {Mathematica slovaca}, pages = {393--404}, publisher = {mathdoc}, volume = {34}, number = {4}, year = {1984}, mrnumber = {775248}, zbl = {0598.34030}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1984__34_4_a7/} }
Haščák, Alexander. Integral equivalence between a nonlinear system and its nonlinear perturbation. Mathematica slovaca, Tome 34 (1984) no. 4, pp. 393-404. http://geodesic.mathdoc.fr/item/MASLO_1984__34_4_a7/