Cogliatti-Carvalho, Luciana, et al. “PHENOTYPIC RESPONSE OF NEOREGELIA JOHANNIS (BROMELIACEAE) DEPENDENT ON LIGHT INTENSITY REACHING THE PLANT MICROHABITAT”. Selbyana, vol. 19, no. 2, Aug. 1998, pp. 240-4, https://journals.flvc.org/selbyana/article/view/120510.