@article{10_21136_MB_2012_142787,
     author = {Fujie-Okamoto, Futaba and Renzema, Willem and Zhang, Ping},
     title = {The $k$-metric colorings of a graph},
     journal = {Mathematica Bohemica},
     pages = {45--63},
     publisher = {mathdoc},
     volume = {137},
     number = {1},
     year = {2012},
     doi = {10.21136/MB.2012.142787},
     mrnumber = {2978445},
     zbl = {1249.05093},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2012.142787/}
}