%0 Journal Article %A Roy A. Sorensen %T An “Essential Reservation” about the EMH %D 1983 %R 10.3905/jpm.1983.408926 %J The Journal of Portfolio Management %P 29-30 %V 9 %N 4 %U https://jpm.pm-research.com/content/iijpormgmt/9/4/29.full.pdf