@article{10_4153_CMB_1970_084_1,
     author = {Kotzig, Anton and Rosa, Alexander},
     title = {Magic {Valuations} of {Finite} {Graphs}},
     journal = {Canadian mathematical bulletin},
     pages = {451--461},
     year = {1970},
     volume = {13},
     number = {4},
     doi = {10.4153/CMB-1970-084-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1970-084-1/}
}