@article{01741004,
title = {Exchange symmetries in Motzkin path and bargraph models of copolymer adsorption.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {DS10},
year = {2002},
zbl = {1025.05002},
language = {en},
url = {http://dml.mathdoc.fr/item/01741004}
}
van Rensburg, E.J.Janse; Rechnitzer, A. Exchange symmetries in Motzkin path and bargraph models of copolymer adsorption.. The Electronic Journal of Combinatorics [electronic only], Tome DS10 (2002) . http://gdmltest.u-ga.fr/item/01741004/