P. R. Galloway, E.A.Hammel. and R. D. Lee. Fertility decline in Prussia 1875-1910: a pooled cross-section time series analysis. Population Studies 48:135-58, 1994.

R. D. Lee, P. R. Galloway, and E.A.Hammel. Fertility decline in Prussia: estimating influences on supply, demand, and degree of control. Demography 31:347-73, 1994.

P. R. Galloway, R. D. Lee and E.A.Hammel. Infant mortality and the fertility transition: macro evidence from Europe and new findings from Prussia. In From death to birth: Mortality declineand reproductive change. pp. 182-226. Mark Montgomery and Barney Cohen, eds. Washington: National Research Council, 1998.

P. R. Galloway, R. D. Lee and E. A. Hammel. Urban vs. rural: fertility decline in the cities and rural districts of Prussia, 1875 to 1910. European Journal of Population 14:209-64, 1998.