Citation: Ia. Lairdoffringa et Jg. Belasco, ANALYSIS OF RNA-BINDING PROTEINS BY IN-VITRO GENETIC SELECTION - IDENTIFICATION OF AN AMINO-ACID RESIDUE IMPORTANT FOR LOCKING U1A ONTO ITSRNA TARGET, Proceedings of the National Academy of Sciences of the United Statesof America, 92(25), 1995, pp. 11859-11863