@article{02158444, title = {Isomorphisms of cyclic abelian covers of symmetric digraphs. II.}, journal = {APPS. Applied Sciences}, volume = {6}, year = {2004}, pages = {53-65}, zbl = {1082.05049}, language = {en}, url = {http://dml.mathdoc.fr/item/02158444} }
Sato, Iwao. Isomorphisms of cyclic abelian covers of symmetric digraphs. II.. APPS. Applied Sciences, Tome 6 (2004) pp. 53-65. http://gdmltest.u-ga.fr/item/02158444/