Populations with sinusoidal birth trajectories. Kim, Y.J. and R. Schoen. Populations with quadratic exponential growth. Schoen, R., Young J. Kim, Constance A. Nathanson, Jason Fields and Nan Marie Astone. Population and Development Review.
Population momentum expresses population aging.
Exploring cyclic net reproduction. Momentum under a gradual approach to zero growth. Family demography, social theory, and investment in social capital.