共 40 条
[1]
Agresti A., 2013, Categorical data analysis, V341, P384
[3]
AKKERMANS DHM, 2005, 21 EGOS C BERL JUN 3
[5]
Albert Michael., 1993, CAPITALISM VERSUS CA
[6]
[Anonymous], 2000, PROTECTING THEIR INT
[7]
[Anonymous], 2005, Patents, Citations and Innovations: A Window on the Knowledge Economy
[9]
Asheim B., 2006, J TECHNOL TRANSFER, V1, P163, DOI DOI 10.1007/S10961-005-5028-0
[10]
Audretsch DB, 1996, AM ECON REV, V86, P630