Groenewald, E. and van der Westhuizen, A. 2003. A few aspects of the physiology of flowering in photoperiodic sensitive plants. Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt;. 22, 1 (Sep. 2003), 6-13. DOI:https://doi.org/10.4102/satnt.v22i1.204.