题目：Innovation and technical change: A case study of the U.K. tractor industry, 1957-1977
作者：M. Gibbons, R. Coombs, P. Saviotti and P. C. Stubbs
期刊：Research Policy： Volume 11, Issue 5, October 1982,Pages 289-310
链接：http://www.sciencedirect.com/science/article/B6V77-45GSHGG-2B/2/37dd893c941391d9abb400547ae78b2a