@article{01102967,
title = {Optimality conditions for control problems governed by abstract semilinear differential equations in complex Banach spaces.},
journal = {Journal of Applied Analysis},
volume = {3},
year = {1997},
pages = {67-91},
doi = {10.1515/JAA.1997.67},
zbl = {0883.49022},
language = {en},
url = {http://dml.mathdoc.fr/item/01102967}
}
Ledzewicz, U.; Nowakowski, A. Optimality conditions for control problems governed by abstract semilinear differential equations in complex Banach spaces.. Journal of Applied Analysis, Tome 3 (1997) pp. 67-91. doi : 10.1515/JAA.1997.67. http://gdmltest.u-ga.fr/item/01102967/