relation: https://pure.iiasa.ac.at/id/eprint/14151/ title: Set valued solutions to control problems and their approximations creator: Kurzhanski, A.B. creator: Valyi, I. publisher: Springer Berlin Heidelberg contributor: Bensoussan, A. contributor: Lions, J.L. date: 1988 type: Book Section type: PeerReviewed identifier: Kurzhanski, A.B. & Valyi, I. (1988). Set valued solutions to control problems and their approximations. In: Analysis and Optimization of Systems. Eds. Bensoussan, A. & Lions, J.L., pp. 775-785 Germany: Springer Berlin Heidelberg. ISBN 978-3-540-39161-6 10.1007/BFb0042263 . relation: doi:10.1007/BFb0042263 identifier: doi:10.1007/BFb0042263