%0 Journal Article %A Maciej P. Wojtkowski %T Hamiltonian systems with linear potential and elastic constraints %J Fundamenta Mathematicae %D 1998 %P 305-341 %V 157 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-157-2-3-305-341/ %R 10.4064/fm-157-2-3-305-341 %G en %F 10_4064_fm_157_2_3_305_341