RT Journal Article SR Electronic T1 Sources of value and risk in common stocks JF The Journal of Portfolio Management FD Institutional Investor Journals SP 5 OP 13 DO 10.3905/jpm.1983.408923 VO 9 IS 4 A1 Estep, Tony A1 Hanson, Nick A1 Johnson, Cal YR 1983 UL http://jpm.pm-research.com/content/9/4/5.abstract AB