@article{COCV_2017__23_2_391_0,
     author = {Ilchmann, Achim and Reis, Timo},
     title = {Outer transfer functions of differential-algebraic systems},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {391--425},
     publisher = {EDP-Sciences},
     volume = {23},
     number = {2},
     year = {2017},
     doi = {10.1051/cocv/2015051},
     zbl = {1358.93051},
     mrnumber = {3608086},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/cocv/2015051/}
}