%0 Journal Article %A Weiss, George %A Tucsnak, Marius %T How to get a conservative well-posed linear system out of thin air. Part I. Well-posedness and energy balance %J ESAIM: Control, Optimisation and Calculus of Variations %D 2003 %P 247-273 %V 9 %I EDP-Sciences %U http://archive.numdam.org/articles/10.1051/cocv:2003012/ %R 10.1051/cocv:2003012 %G en %F COCV_2003__9__247_0