Schmidgen, Henning Department Experimental Systems and Spaces of Knowledge, Max Planck Institute for the History of Science, Max Planck Society;
http://www.mpiwg-berlin.mpg.de/Preprints/P206.PDF (Preprint)
P206.PDF (Preprint), 261KB
Carroy, J., & Schmidgen, H. (2002). Psychologies expérimentales: Leipzig - Paris (1890-1910). Berlin: Max-Planck-Institut für Wissenschaftsgeschichte.