%0 Journal Article
%A Jerzy B. Nowak
%T $L_2$-characteristic classes of Maslov–Trofimov of hamiltonian systems on the Lie algebra of the upper-triangular matrices
%J Fundamenta Mathematicae
%D 1998
%P 99-110
%V 156
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-156-2-99-110/
%R 10.4064/fm-156-2-99-110
%G en
%F 10_4064_fm_156_2_99_110