Irena Penev. Coloring Bull-Free Perfect Graphs. SIAM J. Discrete Math., 26(3):1281-1309, 2012. [doi]
@article{Penev12,
title = {Coloring Bull-Free Perfect Graphs},
author = {Irena Penev},
year = {2012},
doi = {10.1137/110825637},
url = {http://dx.doi.org/10.1137/110825637},
researchr = {https://researchr.org/publication/Penev12},
cites = {0},
citedby = {0},
journal = {SIAM J. Discrete Math.},
volume = {26},
number = {3},
pages = {1281-1309},
}