• Author: Johnsson, A. H. G. Karlsson W. Engelmann
• Title: Phase shift effects in the Kalanchoe petal rhythm due to two or more light pulses. A theoretical and experimental study
• Year: 1972
• Reference Type: Journal Article
• Journal/Book Title: Physiol. {P}lant.
• Volume: 28
• Pages: 134--142
• Date of Publication: Wednesday, 20 December 1972