@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/