%0 Journal Article %A R. Brak %A J. W. Essam %T Bicoloured Dyck paths and the contact polynomial for \(n\) non-intersecting paths in a half-plane lattice %J The electronic journal of combinatorics %D 2003 %V 10 %U http://geodesic.mathdoc.fr/articles/10.37236/1728/ %R 10.37236/1728 %F 10_37236_1728