@article{GDZPPN002033801, title = {Triples, current graphs and biembeddings.}, journal = {Aequationes mathematicae}, volume = {25}, year = {1982}, pages = {230-242}, zbl = {0519.05025}, url = {http://dml.mathdoc.fr/item/GDZPPN002033801} }
Anderson, Ian. Triples, current graphs and biembeddings.. Aequationes mathematicae, Tome 25 (1982) pp. 230-242. http://gdmltest.u-ga.fr/item/GDZPPN002033801/