全文获取类型
收费全文 | 148篇 |
免费 | 5篇 |
出版年
2023年 | 1篇 |
2021年 | 1篇 |
2019年 | 1篇 |
2018年 | 3篇 |
2017年 | 5篇 |
2016年 | 1篇 |
2015年 | 1篇 |
2014年 | 1篇 |
2013年 | 79篇 |
2012年 | 1篇 |
2010年 | 5篇 |
2009年 | 2篇 |
2008年 | 6篇 |
2007年 | 1篇 |
2006年 | 3篇 |
2005年 | 2篇 |
2004年 | 1篇 |
2003年 | 3篇 |
2002年 | 3篇 |
1999年 | 2篇 |
1998年 | 3篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1984年 | 2篇 |
1983年 | 2篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1975年 | 2篇 |
1973年 | 2篇 |
1972年 | 2篇 |
1968年 | 1篇 |
1967年 | 1篇 |
排序方式: 共有153条查询结果,搜索用时 0 毫秒
91.
92.
93.
Michael Schwartz Maximilian Goethner Nathalie Waldmann 《European Planning Studies》2013,21(10):1578-1597
The number of aspiring entrepreneurs in high-tech industries who successfully complete the transition from a nascent start-up project towards an operational new venture is comparatively low in Germany. Since the mid-1990s, policy-makers have initiated numerous start-up competitions (SUCs or business plan competitions) to facilitate this important step in the venture creation process. SUCs have two key objectives. They are aimed at increasing start-up activity by motivating potential entrepreneurs, while they should also help to increase the likelihood of subsequent entrepreneurial success through providing necessary entrepreneurial skills to prospective entrepreneurs. With our explorative study, we provide the first comprehensive empirical evidence from a cross-sectional survey of existing SUCs in Germany. Overall, 71 SUCs are identified which are analysed regarding their development, regional distribution, and main structural characteristics. Finally, we outline an agenda of future research questions concerning the effectiveness and efficiency of SUCs as an instrument of entrepreneurship policy. 相似文献
94.
95.
Theodore Shabad 《Eurasian Geography and Economics》2013,54(2):119-128
Following a critique by the ethnographer V. I. Kozlov of the biological-geographical conception of ethnic history advanced by L. N. Gumilev, a seminar was convened at the Geography Faculty of Leningrad University to discuss the merits of Gumilev's work and of the critique. The consensus of the speakers was that Gumilev's model of ethnic development, treating mankind largely as a biological species and attributing the origins and disappearance of ethnic communities to biological factors, should be treated as a working hypothesis that still required experimental proof. Several participants said they could not agree with some of Gumilev's propositions, especially the existence of a psychic innate drive that is presented as the key element in the generation of new ethnic entities. But speakers did not question his right to present his views, and Kozlov's attack on Gumilev did not appear to find wide support. 相似文献
96.
97.
Theodore H. Von Laue 《History and theory》1998,37(1):112-123
Suganami, Hidemi, On the Causes of War
Kagan, Donald, On the Origins of War and the Preservation of Peace 相似文献
Kagan, Donald, On the Origins of War and the Preservation of Peace 相似文献
98.
99.
100.