@article{10_21136_CMJ_1971_101067,
     author = {Hemminger, Robert L.},
     title = {Isomorphism-induced line isomorphisms on pseudographs},
     journal = {Czechoslovak Mathematical Journal},
     pages = {672--679},
     year = {1971},
     volume = {21},
     number = {4},
     doi = {10.21136/CMJ.1971.101067},
     mrnumber = {0294160},
     zbl = {0223.05129},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1971.101067/}
}