Yi-Chia Chiu Hsien-Che Lai Yi-Ching Liaw Tai-Yu Lee Technological scope: diversified or specialized. 37-58 2010 82 Scientometrics 1 http://dx.doi.org/10.1007/s11192-009-0039-5 db/journals/scientometrics/scientometrics82.html#ChiuLLL10