RT Journal Article SR Electronic T1 A meta-analysis pricing “risk” factors in APT JF The Journal of Portfolio Management FD Institutional Investor Journals SP 35 OP 38 DO 10.3905/jpm.1987.409122 VO 14 IS 1 A1 T. Daniel Coggin A1 John E. Hunter YR 1987 UL https://pm-research.com/content/14/1/35.abstract AB