RT Journal Article SR Electronic T1 The Multi-Dimensional Aspects of Risk JF The Journal of Portfolio Management FD Institutional Investor Journals SP 23 OP 28 DO 10.3905/jpm.1976.408578 VO 2 IS 4 A1 Douglas A. Hayes YR 1976 UL https://pm-research.com/content/2/4/23.abstract AB