Werner M. Seiler. Indices and Solvability for General Systems of Differential Equations. In Victor G. Ganzha, Ernst W. Mayr, Evgenii V. Vorozhtsov, editors, Proceedings of the Second Workshop on Computer Algebra in Scientific Computing, CASC 1999, Munich, Germany, May 31 - June 4, 1999. pages 365-385, Springer, 1999. [doi]
Abstract is missing.