TY  - JOUR
AU  - Toufik Mansour
AU  - Zvezdelina Stankova
TI  - 321-polygon-avoiding permutations and Chebyshev polynomials
JO  - The electronic journal of combinatorics
PY  - 2002
VL  - 9
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.37236/1677/
DO  - 10.37236/1677
ID  - 10_37236_1677
ER  -