篇号：1
题名：Divestiture of Telecommunications in the UK: A Time-Series Analysis
作者：Hunt, L. C. and Lynk, E. L.
期刊全称或缩写：Oxford Bulletin of Economics and Statistics.
年份，卷（期），起止页码：1990, Vol 52. pp 229 – 251.
电子链接：http://ideas.repec.org/a/bla/obuest/v52y1990i3p229-51.html

篇号：2
题名：Multiproduct Technology and Market Structure
作者：Robert D. Willig
期刊全称或缩写：The American Economic Review,
年份，卷（期），起止页码：Vol. 69, No. 2, Papers and Proceedings of the Ninety-First Annual Meeting of the American Economic Association (May, 1979), pp. 346-351
电子链接：http://www.jstor.org/pss/1801671