Efficiently implementing two methods of the geometrical theory of differential equations: An experience in algorithm and software design A. V. BocharovM. L. Bronstein OriginalPaper Pages: 143 - 166
Reducing systems of linear differential equations to a passive form V. L. Topunov OriginalPaper Pages: 191 - 206
Software to compute infinitesimal symmetries of exterior differenial systems, with applications Paul H. M. Kersten OriginalPaper Pages: 207 - 229