RT Journal Article SR Electronic T1 Price-earnings ratios and security performance JF The Journal of Portfolio Management FD Institutional Investor Journals SP 39 OP 46 DO 10.3905/jpm.1987.409127 VO 14 IS 1 A1 Gregg. Jahnke A1 Stephen J. Klaffke A1 Henry R. Oppenheimer YR 1987 UL https://pm-research.com/content/14/1/39.abstract AB