Engelmann, W., Karlsson, H. G., & Johnsson, A. (1972). Phase shifts in the Kalanchoe petal rhythm: Caused by light pulses of different duration ; a theoretical and experimental study.
Chicago Style (17th ed.) CitationEngelmann, Wolfgang, Hans Goeran Karlsson, and Anders Johnsson. Phase Shifts in the Kalanchoe Petal Rhythm: Caused by Light Pulses of Different Duration ; a Theoretical and Experimental Study. Lund, 1972.
MLA (9th ed.) CitationEngelmann, Wolfgang, et al. Phase Shifts in the Kalanchoe Petal Rhythm: Caused by Light Pulses of Different Duration ; a Theoretical and Experimental Study. 1972.
Warning: These citations may not always be 100% accurate.