RT Journal Article SR Electronic T1 Are the Backwaters of the Market Efficient? JF The Journal of Portfolio Management FD Institutional Investor Journals SP 31 OP 34 DO 10.3905/jpm.1979.31 VO 5 IS 3 A1 Richard A. Stevenson A1 Michael Rozeff YR 1979 UL https://pm-research.com/content/5/3/31.abstract AB