← Search Econometrica Vol. 4 No. 2 1936 On a Mixed Difference and Differential Equation R.W. James; M. H. Belz DOI10.2307/1905247 Volume4 Issue2 Pages157 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 ✓