John Baptist Gauci, Anthony J. W. Hilton, Dudley Stark. k-to-1 Functions Between Graphs. Journal of Graph Theory, 74(3):275-308, 2013. [doi]
@article{GauciHS13,
title = {k-to-1 Functions Between Graphs},
author = {John Baptist Gauci and Anthony J. W. Hilton and Dudley Stark},
year = {2013},
doi = {10.1002/jgt.21709},
url = {http://dx.doi.org/10.1002/jgt.21709},
researchr = {https://researchr.org/publication/GauciHS13},
cites = {0},
citedby = {0},
journal = {Journal of Graph Theory},
volume = {74},
number = {3},
pages = {275-308},
}