TY - JOUR AU - TI - A review of some recent developments in portfolio modelling in applied research and development JF - IEEE Transactions on Engineering Management DO - 10.1109/tem.1974.6448491 DA - 1974-01-01 UR - https://www.deepdyve.com/lp/crossref/a-review-of-some-recent-developments-in-portfolio-modelling-in-applied-159Y3HxQjI SP - 119 EP - 125 VL - EM-21 IS - 4 DP - DeepDyve ER -