1. Changes in the photosynthetic metabolism during the early ontogeny of four cactus species;Altesor;Acta Oecologia,1992
2. Allometric neoteny and the evolution of succulence in cacti;Altesor;Botanical Journal of the Linnean Society,1994
3. Las Cactáceas de México;Bravo-Hollis,1978
4. A theory of paedomorphosis in dicotyledonous woods;Carlquist;Phytomorphology,1962
5. On the Interpretation of Phenomena of Phyllotaxis;Church,1920