Understanding and modulating cyclin-dependent kinase inhibitor specificity: molecular modeling and biochemical evaluation of pyrazolopyrimidinones as CDK2/cyclin A and CDK4/cyclin D1 inhibitors. - Karen A. Rossi; Jay A. Markwalder; Steven P. Seitz; Chong-Hwan Chang; Sarah Cox; Michael D. Boisclair; Leonardo Brizuela; Stephen L. Brenner; Pieter F. W. Stouten (J. Comput. Aided Mol. Des., 2005)