2
John S. Ellsworth Jr., “The Relationship of Population Density to Residential Propinquity as a Factor in Marriage Selection”. American Sociological Review 13, no. 4 (1948): 444–48.
3
William M. Kephart. “Some Correlates of Romantic Love”. Journal of Marriage and the Family 29, № 3 (1967). P. 470–474.
4
Stephanie Coontz. Marriage, a History: How Love Conquered Marriage. Penguin, 2006. P. 7.
5
Elizabeth Rice Allgeier and Michael W. Wiederman. “Love and Mate Selection in the 1990s”. Free Inquiry 11, № 3 (1991). P. 25–27.
6
Esther Perel. “The Secret to Desire in a Long-Term Relationship”. TED lecture. February 2013.
7
Casey E. Copen, Kimberly Daniels, Jonathan Vespa, and William D. Mosher. “First Marriages in the United States: Data from the 2006–2010 National Survey of Family Growth”. National Health Statistics Reports 49 (2012).