Oligonucleotide duplexes containing 2'-amino-2'-deoxycytidines: thermal stability and chemical reactivity [published erratum appears in Nucleic Acids Res 1994 Feb 25;22(4): 701]. - Helle Aurup; Thomas Tuschl; Fritz Benseler; Janos Ludwig; Fritz Eckstein (Nucleic Acids Res., 1994)