%0 Journal Article
%A L. Makar-Limanov
%T AK-invariant, some conjectures,
examples and counterexamples
%J Annales Polonici Mathematici
%D 2001
%P 139-145
%V 76
%N 1-2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ap76-1-14/
%R 10.4064/ap76-1-14
%G en
%F 10_4064_ap76_1_14