John Strelow, Walthere Dewe, Phillip Iversen, Harold Brooks, Jeffrey Radding, James McGee and Jeffrey Weidner, "Mechanism of Action Assays for Enzymes", in G. S. Sittampalam, N. P. Coussens, H. Nelson et al. (editors), Assay Guidance Manual, Eli Lilly & Company and the National Center for Advancing Translational Sciences, 2004.