@article{M2AN_2009__43_1_3_0,
     author = {Carlsson, Jesper and Sandberg, Mattias and Szepessy, Anders},
     title = {Symplectic {Pontryagin} approximations for optimal design},
     journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique},
     pages = {3--32},
     publisher = {EDP-Sciences},
     volume = {43},
     number = {1},
     year = {2009},
     doi = {10.1051/m2an/2008038},
     mrnumber = {2494792},
     zbl = {1159.65068},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/m2an/2008038/}
}