RT Journal Article SR Electronic T1 Is Average Maturity a Proxy for Risk? JF The Journal of Portfolio Management FD Institutional Investor Journals SP 60 OP 63 DO 10.3905/jpm.1976.60 VO 2 IS 3 A1 Jess B. Yawitz A1 George H. Hempel A1 William J. Marshall YR 1976 UL https://pm-research.com/content/2/3/60.abstract AB