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Journal Article Multiplexity in Adult Friendships Get access Lois M. Verbrugge Lois M. Verbrugge University of Michigan Search for other works by this author on: Oxford Academic Google Scholar Social Forces, Volume 57, Issue 4, June 1979, Pages 1286–1309, https://doi.org/10.1093/sf/57.4.1286 Published: 01 June 1979
Lois M. Verbrugge (Fri,) studied this question.