%0 Journal Article
%A R. Romano
%T Study of L(r, s)-colourings for Caterpillars and for Trees
%J Mathematica balkanica
%D 2000
%P 59
%V 14
%N 1-2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MABA_2000_14_1-2_a4/
%F MABA_2000_14_1-2_a4