@article{DMDICO_2007_27_1_a7,
     author = {Nowakowski, Andrzej},
     title = {Sufficient optimality conditions for multivariable control problems},
     journal = {Discussiones Mathematicae. Differential Inclusions, Control and Optimization},
     pages = {135--150},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {2007},
     zbl = {1191.49023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMDICO_2007_27_1_a7/}
}