Frisch, Ragnar (1926). “Kvantitativ formulering av den teoretiske økonomikks lover [Quantitative formulation of the laws of economic theory]”. Statsøkonomisk Tidsskrift. 40: 299–334.
Frisch, Ragnar (1926). “Sur un problème d'économie pure [On a problem in pure economics]”. Norsk Matematisk Forenings Skrifter, Oslo. 1 (16): 1–40.
Frisch, Ragnar (1927). “Sammenhengen mellem primærinvestering og reinvestering [The relationship between primary investment and reinvestment]”. Statsøkonomisk Tidsskrift. 41: 117–152.
Frisch, Ragnar (1929). “Correlation and scatter in statistical variables”. Nordic Statistical Journal. 1: 36–102.
Frisch, Ragnar (1929). “Statikk og dynamikk i den økonomiske teori [Statics and dynamics in economic theory]”. Nationaløkonomisk Tidsskrift. 67: 321–379.
There is a bibliography of Frisch's wrtings up to 1960 in
Kenneth J. Arrow "The Work of Ragnar Frisch, Econometrician," Econometrica, Vol. 28, No. 2. (Apr., 1960), pp. 175–192
and there is a collection of selected essays
Olav Bjerkholt(ed.) (1995) Foundations of Modern Econometrics: The Selected Essays of Ragnar Frisch, 2 volumes, Aldershot, UK: Edward Elgar.