@article{Smith2014,
author = {Smith, J.A. and McPherson, M. and Smith-Lovin, L.},
title= {Social distance in the United States: Sex, race, religion, age, and education homophily among confidants, 1985 to 2004},
year = {2014},
doi = {10.1177/0003122414531776},
journal = {American Sociological Review},
volume = {79},
number = {3},
pages = {432--456},
}