@article{10_4153_CJM_1980_062_7,
     author = {Schmerl, James H.},
     title = {Recursive {Colorings} of {Graphs}},
     journal = {Canadian journal of mathematics},
     pages = {821--830},
     year = {1980},
     volume = {32},
     number = {4},
     doi = {10.4153/CJM-1980-062-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-062-7/}
}