%0 Journal Article
%A Toufik Mansour
%A Zvezdelina Stankova
%T 321-polygon-avoiding permutations and Chebyshev polynomials
%J The electronic journal of combinatorics
%D 2002
%V 9
%N 2
%U http://geodesic.mathdoc.fr/articles/10.37236/1677/
%R 10.37236/1677
%F 10_37236_1677