George B. Mertzios, Walter Unger. The Friendship Problem on Graphs. Multiple-Valued Logic and Soft Computing, 27(2-3):275-285, 2016. [doi]
@article{MertziosU16,
title = {The Friendship Problem on Graphs},
author = {George B. Mertzios and Walter Unger},
year = {2016},
url = {http://www.oldcitypublishing.com/journals/mvlsc-home/mvlsc-issue-contents/mvlsc-volume-27-number-2-3-2016/mvlsc-27-2-3-p-275-285/},
researchr = {https://researchr.org/publication/MertziosU16},
cites = {0},
citedby = {0},
journal = {Multiple-Valued Logic and Soft Computing},
volume = {27},
number = {2-3},
pages = {275-285},
}