RT Journal Article SR Electronic T1 Short-Term Risk-Adjusted Performance JF The Journal of Investing FD Institutional Investor Journals SP 19 OP 27 DO 10.3905/joi.1997.408420 VO 6 IS 2 A1 Frank A. Sortino A1 Gary A. Miller A1 Joseph M. Messina YR 1997 UL https://pm-research.com/content/6/2/19.abstract AB