Floersheim, Philipp, Esteban Pombo-Villar, and Gideon Shapiro. “Isosterism and Bioisosterism Case Studies With Muscarinic Agonists”. CHIMIA 46, no. 7-8 (August 19, 1992): 323. Accessed November 23, 2024. https://www.chimia.ch/chimia/article/view/1992_323.