← Search Journal of Finance Vol. 42 No. 2 1987 Positively Weighted Frontier Portfolios: A Note Lars Tyge Nielsen The University of Texas at Austin DOI10.1111/j.1540-6261.1987.tb02579.x Volume42 Issue2 Pages471-471 Languageen Sources semanticscholar openalex crossref Cite APA 7 MLA 9 Chicago (author–date) Harvard Elsevier Harvard (JFE, JBF…) The Accounting Review Academy of Management American Marketing Association INFORMS (Management Science) Copy citation Copied ✓