RT Journal Article SR Electronic T1 Interest rate risk, immunization, and duration JF The Journal of Portfolio Management FD Institutional Investor Journals SP 41 OP 48 DO 10.3905/jpm.1986.409062 VO 12 IS 3 A1 Kevin J. Maloney A1 Jess B. Yawitz YR 1986 UL https://pm-research.com/content/12/3/41.abstract AB