RT Journal Article SR Electronic T1 A new approach to determining optimum portfolio mix JF The Journal of Portfolio Management FD Institutional Investor Journals SP 43 OP 49 DO 10.3905/jpm.1989.409201 VO 15 IS 3 A1 Shahriar Khaksari A1 Ravindra Kamath A1 Robin Grieves YR 1989 UL https://pm-research.com/content/15/3/43.abstract AB