Garcia-Suarez, M.D., et al. “In-Vitro Germination and Clonal Propagation of Endemic Tillandsia Califanii Rauh (Bromeliaceae) from Mexico”. Selbyana, vol. 27, no. 1, Feb. 2006, pp. 54-59, https://ojs.test.flvc.org/selbyana/article/view/121321.