?url_ver=Z39.88-2004&rft_id=DOI%3A+10.1007%2F978-3-319-72150-7_60&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Gao&rft.au=Gao%2C+Yuan&rft.aufirst=Yuan&rft.date=2018&rft.isbn=978-3-319-72150-7&rft.title=Consistency+and+Trends+of+Technological+Innovations%3A+A+Network+Approach+to+the+International+Patent+Classification+Data&rft.btitle=Complex+Networks+%26+Their+Applications+VI.+COMPLEX+NETWORKS+2016+2017.+Studies+in+Computational+Intelligence&rft.genre=bookitem