Reza Naserasr, Sagnik Sen, Qiang Sun. Walk-Powers and Homomorphism Bounds of Planar Signed Graphs. Graphs and Combinatorics, 32(4):1505-1519, 2016. [doi]
@article{NaserasrSS16,
title = {Walk-Powers and Homomorphism Bounds of Planar Signed Graphs},
author = {Reza Naserasr and Sagnik Sen and Qiang Sun},
year = {2016},
doi = {10.1007/s00373-015-1654-y},
url = {http://dx.doi.org/10.1007/s00373-015-1654-y},
researchr = {https://researchr.org/publication/NaserasrSS16},
cites = {0},
citedby = {0},
journal = {Graphs and Combinatorics},
volume = {32},
number = {4},
pages = {1505-1519},
}