@article{10_37236_1913,
     author = {A. Sapounakis and P. Tsikouras},
     title = {Counting peaks and valleys in \(k\)-colored {Motzkin} paths},
     journal = {The electronic journal of combinatorics},
     year = {2005},
     volume = {12},
     doi = {10.37236/1913},
     zbl = {1060.05009},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1913/}
}