Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Oskar von Stryk, R. Bulirsch. Direct and indirect methods for trajectory optimization. Annals OR, 37:357-373, 1992. [doi]