@article{00022185, title = {The non-parameter penalty function method in constrained optimal control problems.}, journal = {Journal of Applied Mathematics and Stochastic Analysis}, volume = {4}, year = {1991}, pages = {165-174}, doi = {10.1155/S1048953391000138}, zbl = {0746.49023}, language = {en}, url = {http://dml.mathdoc.fr/item/00022185} }
Xing, An-Qing. The non-parameter penalty function method in constrained optimal control problems.. Journal of Applied Mathematics and Stochastic Analysis, Tome 4 (1991) pp. 165-174. doi : 10.1155/S1048953391000138. http://gdmltest.u-ga.fr/item/00022185/