Title: Site-Directed Mutagenesis of Functional Residues in Torpedo Acetylcholinesterase Silman I, Krejci E, Duval N Ref: In Multidisciplinary approaches to cholinesterase functions - Proceedings of Fourth International Meeting on Cholinesterases, (Shafferman, A. and Velan, B., Eds) Plenum Press, New York:177, 1992 : PubMed