RT Journal Article SR Electronic T1 Duration Estimates on Mortgage-Backed Securities JF The Journal of Portfolio Management FD Institutional Investor Journals SP 32 OP 38 DO 10.3905/jpm.1993.409436 VO 19 IS 2 A1 Paul DeRosa A1 Laurie S Goodman A1 Mike Zazzarino YR 1993 UL https://pm-research.com/content/19/2/32.abstract AB