@book{ BA73079989, author = "McAleer, Michael and Slottje, Daniel Jonathan and Wee, Pei Syn", title = "Patent activity and technical change in US industries", publisher = "Elsevier", year = "2005", edition = "1st ed", series = "Contributions to economic analysis", number = "272", URL = "https://ci.nii.ac.jp/ncid/BA73079989" }