RT Journal Article SR Electronic T1 A comparison of published betas JF The Journal of Portfolio Management FD Institutional Investor Journals SP 64 OP 69 DO 10.3905/jpm.1988.409155 VO 14 IS 3 A1 Frank K. Reilly A1 David J. Wright YR 1988 UL https://pm-research.com/content/14/3/64.abstract AB