← Search Econometrica Vol. 34 No. 2 1966 Actes de la 3ieme conference internationale de recherche operationelle, Oslo, 1963 F. Ferschl; G. Kreweras; G. Morlat DOI10.2307/1909959 Volume34 Issue2 Pages521 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 ✓