%0 Generic %E Albers, Focke, %E Meve, Ulrich, %@ 9783642563706 %T Illustrated Handbook of Succulent Plants: Asclepiadaceae %U https://ezaccess.libraries.psu.edu/login?url=https://doi.org/10.1007/978-3-642-56370-6 %7 1st ed. 2004.