Boker, Steven M. Center for Lifespan Psychology, Max Planck Institute for Human Development, Max Planck Society;
Boker, S. M., Deboeck, P. R., Edler, C., & Keel, P. K. (2010). Generalized local linear approximation of derivatives from time series. In S.-M. Chow, E. Ferrer, & F. Hsieh (Eds.), Statistical methods for modeling human dynamics: An interdisciplinary dialogue (pp. 161-178). New York: Routledge.