“?A MECHANISM FOR NITRIC ACID INDUCED OXIDATION PRODUCTS OF YOHIMBANE ALKALOIDS”. Biological Sciences - PJSIR 38, no. 3-4 (May 22, 1995): 127–129. Accessed March 11, 2026. https://www.v2.pjsir.org/index.php/biological-sciences/article/view/2452.