Oster, H. Research Group on Circadian Rythms, MPI for biophysical chemistry, Max Planck Society;
Jud, C., Schmutz, I., Hampp, G., Oster, H., & Albrecht, U. (2005). A guideline for analyzing circadian wheel-running behavior in rodents under different lighting conditions. Biological Procedures, Online 7, 101-116. Retrieved from http://www.biologicalprocedures.com/bpo/arts/1/109/m109.pdf.