Fursikov, A. V. First integrals and integrability of systems of quasilinear equations. (English) Zbl 0495.35022 Transl., Ser. 2, Am. Math. Soc. 118, 281-306 (1982). MSC: 35F25 35C15 34A34 PDFBibTeX XMLCite \textit{A. V. Fursikov}, Transl., Ser. 2, Am. Math. Soc. 118, 281--306 (1982; Zbl 0495.35022) Full Text: DOI
Fursikov, A. V. First integrals and the integrability of systems of quasilinear equations. (Russian) Zbl 0461.35025 Tr. Semin. Im. I.G. Petrovskogo 3, 197-222 (1978). MSC: 35G20 34A34 35C15 PDFBibTeX XMLCite \textit{A. V. Fursikov}, Tr. Semin. Im. I. G. Petrovskogo 3, 197--222 (1978; Zbl 0461.35025)