Changhong Lu, Qing Zhou. L(2, 1)L(2, 1)-labeling number of graphs. Discrete Applied Mathematics, 161(13-14):2062-2074, 2013. [doi]
@article{LuZ13-2,
title = {L(2, 1)L(2, 1)-labeling number of graphs},
author = {Changhong Lu and Qing Zhou},
year = {2013},
doi = {10.1016/j.dam.2013.02.020},
url = {http://dx.doi.org/10.1016/j.dam.2013.02.020},
researchr = {https://researchr.org/publication/LuZ13-2},
cites = {0},
citedby = {0},
journal = {Discrete Applied Mathematics},
volume = {161},
number = {13-14},
pages = {2062-2074},
}