共 85 条
[2]
Aigner D., 1977, J. Econometrics, V6, P21, DOI DOI 10.1016/0304-4076(77)90052-5
[4]
[Anonymous], 2013, PORTLAND INT C MANAG
[6]
Arundel A., 2004, ECON INNOV NEW TECH, V13, P559, DOI [DOI 10.1080/1043859092000234311, 10.1080/1043859092000234311]
[7]
Association of University Technology Managers, 2014, AUTM LIC ACT SURV FY
[8]
Battese G.E., 1995, Empirical Econ, V20, P325