@article{10_37236_832,
     author = {Evangelos Georgiadis and David Callan and Qing-Hu Hou},
     title = {Circular digraph walks, \(k\)-balanced strings, lattice paths and {Chebychev} polynomials},
     journal = {The electronic journal of combinatorics},
     year = {2008},
     volume = {15},
     doi = {10.37236/832},
     zbl = {1180.05002},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/832/}
}