Eman Yasser Daraghmi, Shyan-Ming Yuan. We are so close, less than 4 degrees separating you and me!. Computers in Human Behavior, 30:273-285, 2014. [doi]
@article{DaraghmiY14,
title = {We are so close, less than 4 degrees separating you and me!},
author = {Eman Yasser Daraghmi and Shyan-Ming Yuan},
year = {2014},
doi = {10.1016/j.chb.2013.09.014},
url = {http://dx.doi.org/10.1016/j.chb.2013.09.014},
researchr = {https://researchr.org/publication/DaraghmiY14},
cites = {0},
citedby = {0},
journal = {Computers in Human Behavior},
volume = {30},
pages = {273-285},
}