B.M.ZNOSKO,M.E.BURKARD,T.R.KRUGH,D.H.TURNER. MOLECULAR RECOGNITION IN PURINE-RICH INTERNAL LOOPS: THERMODYNAMIC, STRUCTURAL, AND DYNAMIC CONSEQUENCES OF PURINE FOR ADENINE SUBSTITUTIONS IN 5'(RGGCAAGCCU)2. BIOCHEMISTRY V. 41 14978 2002 ASTM BICHAW US ISSN 0006-2960