Tomás Feder, Pavol Hell, Benoit Larose, Mark H. Siggers, Claude Tardif. Graphs Admitting k-NU Operations. Part 2: The Irreflexive Case. SIAM J. Discrete Math., 28(2):817-834, 2014. [doi]
@article{FederHLST14,
title = {Graphs Admitting k-NU Operations. Part 2: The Irreflexive Case},
author = {Tomás Feder and Pavol Hell and Benoit Larose and Mark H. Siggers and Claude Tardif},
year = {2014},
doi = {10.1137/130914784},
url = {http://dx.doi.org/10.1137/130914784},
researchr = {https://researchr.org/publication/FederHLST14},
cites = {0},
citedby = {0},
journal = {SIAM J. Discrete Math.},
volume = {28},
number = {2},
pages = {817-834},
}