Yang, Deane
Involutive hyperbolic differential systems - Providence, R.I., U.S.A. : American Mathematical Society, 1987 - 1 online resource (xi, 93 p.) - Memoirs of the American Mathematical Society, 1947-6221 ; .
9781470407865 (online)
Involutive hyperbolic differential systems - Providence, R.I., U.S.A. : American Mathematical Society, 1987 - 1 online resource (xi, 93 p.) - Memoirs of the American Mathematical Society, 1947-6221 ; .
9781470407865 (online)