%0 Journal Article %A Sanjay K. Nawalkha %A Donald R. Chambers %T The M-Vector Model %B Derivation and Testing of Extensions to M-Square %D 1997 %R 10.3905/jpm.23.2.92 %J The Journal of Portfolio Management %P 92-98 %V 23 %N 2 %U https://jpm.pm-research.com/content/iijpormgmt/23/2/92.full.pdf