%0 Journal Article %A Bruce I. Jacobs %A Kenneth N. Levy %T Engineering Portfolios %B A Unified Approach %D 1995 %R 10.3905/joi.4.4.8 %J The Journal of Investing %P 8-14 %V 4 %N 4 %U https://joi.pm-research.com/content/iijinvest/4/4/8.full.pdf