RT Journal Article SR Electronic T1 Effective Durations for Recipes for Mortgage-Backed Securities JF The Journal of Fixed Income FD Institutional Investor Journals SP 23 OP 30 DO 10.3905/jfi.1996.408157 VO 5 IS 4 A1 Sam Choi YR 1996 UL https://pm-research.com/content/5/4/23.abstract AB