Bergstrand, Jeffrey H.; Egger, Peter H.; Toubal, Farid (2024). "Introduction to the special issue on: Gravity at sixty". European Economic Review 104749. doi:10.1016/j.euroecorev.2024.104749. ISSN0014-2921.
Isard, Walter (May 1954). "Location Theory and Trade Theory: Short-Run Analysis". Quarterly Journal of Economics. 68 (2): 305–320. doi:10.2307/1884452. JSTOR1884452.
Capoani, L. (2024). "The gravity equation in international trade: an overview of the introduction of gravity to the study of economics and its systematic barriers". The European Journal of the History of Economic Thought. 31 (3): 487–520. doi:10.1080/09672567.2024.2329064.
Baier, SL; Bergstrand, JH (2009). "Bonus Vetus OLS:"A Simple Method for Approximating International Trade-Cost Effects Using the Gravity Equation". Journal of International Economics. 77: 77–85. doi:10.1016/j.jinteco.2008.10.004.
Isard, Walter (May 1954). "Location Theory and Trade Theory: Short-Run Analysis". Quarterly Journal of Economics. 68 (2): 305–320. doi:10.2307/1884452. JSTOR1884452.
Bergstrand, Jeffrey H.; Egger, Peter H.; Toubal, Farid (2024). "Introduction to the special issue on: Gravity at sixty". European Economic Review 104749. doi:10.1016/j.euroecorev.2024.104749. ISSN0014-2921.