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@article{ARM_1979__15_4_a7, author = {Perko, Richard}, title = {Zur {Theorie} der partiellen {Differentialgleichungen} vom {Briot-Bouquet'schen} {Typ}}, journal = {Archivum mathematicum}, pages = {233--244}, publisher = {mathdoc}, volume = {15}, number = {4}, year = {1979}, mrnumber = {563152}, zbl = {0429.35002}, language = {ge}, url = {http://geodesic.mathdoc.fr/item/ARM_1979__15_4_a7/} }
Perko, Richard. Zur Theorie der partiellen Differentialgleichungen vom Briot-Bouquet'schen Typ. Archivum mathematicum, Tome 15 (1979) no. 4, pp. 233-244. http://geodesic.mathdoc.fr/item/ARM_1979__15_4_a7/