Corso di Economia Politica (Volume Secondo); Problemi Speziali. Money; Credit and Banking; Saving and Investments; International Trade; Foreign Exchanges.--Market Forms Louise Sommer; C. Bresciani-Turroni Econometrica 1957 25(3), 494
Cahiers du seminaire d'econometrie, No. 3, Les modeles econometriques J. C. Antoine; René Roy Econometrica 1957 25(4), 614
Assignment Problems and the Location of Economic Activities Tjalling C. Koopmans; Martin J. Beckmann Econometrica 1957 25(1), 53