共 47 条
[1]
Aerts K., 2006, YMPACT PUBLIC R D FU
[3]
[Anonymous], 2004, 456 ZEW
[4]
[Anonymous], 1999, HDB LABOR EC
[5]
[Anonymous], 2005, GUID COLL INT INN DA
[6]
Arrow K., 1962, The rate and direction of inventive activity, DOI [10.1515/9781400879762-024, DOI 10.1515/9781400879762-024]
[10]
Bloom N., 2010, 675 CEP