@article{10_37236_9,
     author = {A. Aflaki and S. Akbari and K.J. Edwards and D.S. Eskandani and M. Jamaali and H. Ravanbod},
     title = {On harmonious colouring of trees},
     journal = {The electronic journal of combinatorics},
     year = {2012},
     volume = {19},
     number = {1},
     doi = {10.37236/9},
     zbl = {1244.05083},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/9/}
}