Dixon, Huw (December 1990). "Bertrand–Edgeworth Equilibria when Firms Avoid Turning Customers Away". Journal of Industrial Economics. 39 (2). Wiley-Blackwell: 131–46. doi:10.2307/2098489. JSTOR2098489.(subscription may be required or content may be available in libraries)
Allen, Beth; Hellwig, Martin (May 1986). "Price-Setting Firms and the Oligopolistic Foundations of Perfect Competition". Papers and Proceedings of the Ninety-Eighth Annual Meeting of the American Economic Association. 76 (2). American Economic Review: 387–392. JSTOR1818802.(subscription may be required or content may be available in libraries)
Dixon, Huw (December 1990). "Bertrand–Edgeworth Equilibria when Firms Avoid Turning Customers Away". Journal of Industrial Economics. 39 (2). Wiley-Blackwell: 131–46. doi:10.2307/2098489. JSTOR2098489.(subscription may be required or content may be available in libraries)