Vadim E. Levit, David Tankus. On relating edges in graphs without cycles of length 4. J. Discrete Algorithms, 26:28-33, 2014. [doi]
@article{LevitT14,
title = {On relating edges in graphs without cycles of length 4},
author = {Vadim E. Levit and David Tankus},
year = {2014},
doi = {10.1016/j.jda.2013.09.007},
url = {http://dx.doi.org/10.1016/j.jda.2013.09.007},
researchr = {https://researchr.org/publication/LevitT14},
cites = {0},
citedby = {0},
journal = {J. Discrete Algorithms},
volume = {26},
pages = {28-33},
}