Hillson, Charles (1979). "Leaf Development in Senecio rowleyanus (Compositae)". American Journal of Botany. 66 (1): 59–63. doi:10.2307/2442625. JSTOR2442625.
Kaul, R.B. (1980). "Light Transmission in Window-leaved Plants". Can. J. Bot. 58 (14): 1591–1600. doi:10.1139/b80-193.
jstor.org
Hillson, Charles (1979). "Leaf Development in Senecio rowleyanus (Compositae)". American Journal of Botany. 66 (1): 59–63. doi:10.2307/2442625. JSTOR2442625.