@article{10_4064_am_17_4_619_629,
     author = {B. Florkiewicz},
     title = {On the necessary condition for the optimality of control in the problem of evasion in differential games},
     journal = {Applicationes Mathematicae},
     pages = {619--629},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {1980},
     doi = {10.4064/am-17-4-619-629},
     zbl = {0543.90107},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am-17-4-619-629/}
}