RT Journal Article SR Electronic T1 Duration: Response to critics JF The Journal of Portfolio Management FD Institutional Investor Journals SP 83 OP 87 DO 10.3905/jpm.1989.409204 VO 15 IS 3 A1 N. Bulent Gultekin A1 Richard J. Rogalski YR 1989 UL https://pm-research.com/content/15/3/83.abstract AB