@article{CC_2005_34_3_a7,
     author = {Felgenhauer, Ursula},
     title = {Optimality properties of controls with bang-bang components in problems with semilinear state equation},
     journal = {Control and Cybernetics},
     pages = {763--785},
     publisher = {mathdoc},
     volume = {34},
     number = {3},
     year = {2005},
     zbl = {1167.49312},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CC_2005_34_3_a7/}
}