RT Journal Article SR Electronic T1 Relative Strength Revisited JF The Journal of Portfolio Management FD Institutional Investor Journals SP 19 OP 23 DO 10.3905/jpm.1979.408689 VO 5 IS 3 A1 Robert D. Arnott YR 1979 UL https://pm-research.com/content/5/3/19.abstract AB