RT Journal Article SR Electronic T1 How Consistently do Managers Manage? JF The Journal of Portfolio Management FD Institutional Investor Journals SP 11 OP 15 DO 10.3905/jpm.1977.11 VO 3 IS 2 A1 Robert C. Klemkosky YR 1977 UL https://pm-research.com/content/3/2/11.abstract AB