Approximation of reachable sets by direct solution methods for optimal control problems. - Robert Baier; Christof Büskens; Ilyes Aïssa Chahma; Matthias Gerdts (Optim. Methods Softw., 2007)

Stability and Convergence of Euler's Method for State-Constrained Differential Inclusions. - Robert Baier; Ilyes Aïssa Chahma; Frank Lempio (SIAM J. Optim., 2007)