Information Journal Paper
APA:
CopyCOE, D.T., HELPMAN, E., & HOFFMAISTER, A.W.. (2009). INTERNATIONAL R&D SPILLOVERS AND INSTITUTIONS. EUROPEAN ECONOMIC REVIEW, 53(7), 423-451. SID. https://sid.ir/paper/602678/en
Vancouver:
CopyCOE D.T., HELPMAN E., HOFFMAISTER A.W.. INTERNATIONAL R&D SPILLOVERS AND INSTITUTIONS. EUROPEAN ECONOMIC REVIEW[Internet]. 2009;53(7):423-451. Available from: https://sid.ir/paper/602678/en
IEEE:
CopyD.T. COE, E. HELPMAN, and A.W. HOFFMAISTER, “INTERNATIONAL R&D SPILLOVERS AND INSTITUTIONS,” EUROPEAN ECONOMIC REVIEW, vol. 53, no. 7, pp. 423–451, 2009, [Online]. Available: https://sid.ir/paper/602678/en