Thomas Zaslavsky. Negative (and positive) circles in signed graphs: A problem collection. AKCE Int. J. Graphs Comb., 15(1):31-48, 2018. [doi]
@article{Zaslavsky18,
title = {Negative (and positive) circles in signed graphs: A problem collection},
author = {Thomas Zaslavsky},
year = {2018},
doi = {10.1016/j.akcej.2018.01.011},
url = {https://doi.org/10.1016/j.akcej.2018.01.011},
researchr = {https://researchr.org/publication/Zaslavsky18},
cites = {0},
citedby = {0},
journal = {AKCE Int. J. Graphs Comb.},
volume = {15},
number = {1},
pages = {31-48},
}