@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/