7Lamanna, M. A. and A. Riedmann. 1991. Marriages and Families: Making choices and Facing Change. Fourth Edition. Belmont,California: Wadsworth Publishing Company.
8Beiles, A. 1994. A buffered interaction between sex ratio, age difference at marriage, and population growth in humans, and their significance for sex ratio evolution. Hereditary, 33. S, 265ff.
9Tuljapurkar, S, N. Li, and M. W. Fddman. 1995. High sex ratios in China's future. Science, 267: 874-876.
10Peston, D. L, K. L. Glover. 2005. Too Many Males: Marriage Market Implications of Gender Imbalances in China. Paper presented at the 25^th IUSSP World Population Conference. Tours, France. July 18 - 23.
