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Frank D. Bean, Dorie G. Williams, Wolfgang Opitz, Jeffrey A. Burr, Katherine Trent, Sociodemographic and Marital Heterogamy Influences on the Decision for Voluntary Sterilization, Journal of Marriage and Family, Vol. 49, No. 2 (May, 1987), pp. 465-476
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Bean et al. (1987) studied this question.
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