RT Journal Article SR Electronic T1 Prepayment Convexity and Duration JF The Journal of Fixed Income FD Institutional Investor Journals SP 7 OP 11 DO 10.3905/jfi.1995.408127 VO 4 IS 4 A1 Andy Sparks A1 Frank Feikeh Sung YR 1995 UL https://pm-research.com/content/4/4/7.abstract AB