
Ragnar Frisch. " A complete scheme for computing all direct and cross demand elasticities in a model with many sectors http://econ.ucdenver.edu/beckman/Research/readings/frisch-demand-econometrica.pdf." Econometrica 27.2 (1959), p. 178; Cited in: Chipman, John S. " http://www.sv.uio.no/econ/om/tall-og-fakta/nobelprisvinnere/ragnar-frisch/Chipman%20paper[1.pdf The contributions of Ragnar Frisch to economics and econometrics]." ECONOMETRIC SOCIETY MONOGRAPHS 31 (1998): 58-110.
1940-60s