@article{10_21136_MB_2017_0035_15,
     author = {English, Sean and Zhang, Ping},
     title = {On graceful colorings of trees},
     journal = {Mathematica Bohemica},
     pages = {57--73},
     publisher = {mathdoc},
     volume = {142},
     number = {1},
     year = {2017},
     doi = {10.21136/MB.2017.0035-15},
     mrnumber = {3619987},
     zbl = {06738570},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2017.0035-15/}
}