@article{10_21136_CMJ_1994_128488,
     author = {Chartrand, Gary and Gavlas, Heather and Harary, Frank and Schultz, Michelle},
     title = {On signed degrees in signed graphs},
     journal = {Czechoslovak Mathematical Journal},
     pages = {677--690},
     publisher = {mathdoc},
     volume = {44},
     number = {4},
     year = {1994},
     doi = {10.21136/CMJ.1994.128488},
     mrnumber = {1295143},
     zbl = {0837.05110},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1994.128488/}
}