%0 Journal Article
%A Robert Dryło
%T A Remark on a Paper of Crachiola and Makar-Limanov
%J Bulletin of the Polish Academy of Sciences. Mathematics
%D 2011
%P 203-206
%V 59
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ba59-3-2/
%R 10.4064/ba59-3-2
%G en
%F 10_4064_ba59_3_2