@article{COCV_2006__12_1_169_0,
     author = {Grabowski, Piotr and Callier, Frank M.},
     title = {On the circle criterion for boundary control systems in factor form : {Lyapunov} stability and {Lur'e} equations},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {169--197},
     publisher = {EDP-Sciences},
     volume = {12},
     number = {1},
     year = {2006},
     doi = {10.1051/cocv:2005027},
     zbl = {1105.93044},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/cocv:2005027/}
}