RT Journal Article SR Electronic T1 Yields and Risk Measures for Real Estate, 1966–77 JF The Journal of Portfolio Management FD Institutional Investor Journals SP 14 OP 19 DO 10.3905/jpm.1980.408781 VO 7 IS 1 A1 James R. Webb A1 C.F. Sirmans YR 1980 UL https://pm-research.com/content/7/1/14.abstract AB