Portfolio Selection in the Mean-Variance Model: A Note Lars Tyge Nielsen Journal of Finance 1987 42(5), 1371
Positively Weighted Frontier Portfolios: A Note Lars Tyge Nielsen Journal of Finance 1987 42(2), 471-471
Portfolio Selection in the Mean‐Variance Model: A Note Lars Tyge Nielsen Journal of Finance 1987 42(5), 1371-1376