Altmann, Karl-Heinz, et al. “Natural Products As Leads for Anticancer Drug Discovery: Discovery of New Chemotypes of Microtubule Stabilizers through Reengineering of the Epothilone Scaffold”. CHIMIA, vol. 64, no. 1-2, Feb. 2010, p. 8, doi:10.2533/chimia.2010.8.