全文获取类型
收费全文 | 4362篇 |
免费 | 403篇 |
国内免费 | 32篇 |
出版年
2021年 | 90篇 |
2019年 | 95篇 |
2018年 | 63篇 |
2017年 | 113篇 |
2016年 | 88篇 |
2015年 | 97篇 |
2014年 | 106篇 |
2013年 | 753篇 |
2012年 | 73篇 |
2011年 | 64篇 |
2010年 | 101篇 |
2009年 | 122篇 |
2008年 | 123篇 |
2007年 | 149篇 |
2006年 | 75篇 |
2005年 | 98篇 |
2004年 | 79篇 |
2003年 | 57篇 |
2002年 | 72篇 |
2001年 | 59篇 |
2000年 | 52篇 |
1999年 | 145篇 |
1998年 | 104篇 |
1997年 | 112篇 |
1996年 | 100篇 |
1995年 | 79篇 |
1994年 | 91篇 |
1993年 | 100篇 |
1992年 | 93篇 |
1991年 | 99篇 |
1990年 | 65篇 |
1989年 | 83篇 |
1988年 | 89篇 |
1987年 | 78篇 |
1986年 | 77篇 |
1985年 | 70篇 |
1983年 | 45篇 |
1982年 | 45篇 |
1981年 | 46篇 |
1980年 | 51篇 |
1979年 | 45篇 |
1978年 | 49篇 |
1977年 | 45篇 |
1976年 | 45篇 |
1975年 | 46篇 |
1974年 | 52篇 |
1973年 | 50篇 |
1972年 | 52篇 |
1971年 | 43篇 |
1969年 | 40篇 |
排序方式: 共有4797条查询结果,搜索用时 15 毫秒
841.
842.
843.
John H. Maurer 《战略研究杂志》2013,36(1):102-127
Brian Johnson, The Secret War. London: BBC, 1978. Pp. 352; £6.50. R. V. Jones, Most Secret War: British Scientific Intelligence 1939–45. London: Hamish Hamilton, 1978. Pp. xx + 556; £7.95. Solly Zuckerman, From Apes to Warlords 1904–46. London: Hamish Hamilton, 1978. Pp. 00 (Information not available from publisher); £8.50. Adrian Preston, ed., General Staffs and Diplomacy before the Second War. London: Croom Helm, 1978. Pp. 138; £5.95. W. G. F. Jackson. ’Overlord’: Normandy 1944. London: Davis Poynter, 1978. Pp. 250; £6.75. Richard K. Betts, Soldiers, Statesmen, and Cold War Crises. Cambridge, Mass. and London: Harvard University Press, 1977. Pp. 292 + index + appendices; Np. Gerard J. Mangone, Marine policy for America—The United States at Sea. Lexington, Mass.: Lexington Books, 1977. Pp. 370, £17.50. F. M. Richardson, Fighting Spirit. London: Leo Cooper, 1978. Pp. 189 + xv; £7.50. Allen R. Millet, Ed., A Short History of the Vietnam War. London &; Bloomington: Indiana University Press, 1978. Pp. 169; £2.75. Robert P. Berman, Soviet Airpower in Transition. Washington: Brookings, 1978. Pp. 82; $2.95 (Paper). 相似文献
844.
845.
This article proposes two dual‐ascent algorithms and uses each in combination with a primal drop heuristic embedded within a branch and bound framework to solve the uncapacitated production assembly distribution system (i.e., supply chain) design problem, which is formulated as a mixed integer program. Computational results indicate that one approach, which combines primal drop and dual‐ascent heuristics, can solve instances within reasonable time and prescribes solutions with gaps between the primal and dual solution values that are less than 0.15%, an efficacy suiting it for actual large‐scale applications. © 2012 Wiley Periodicals, Inc. Naval Research Logistics, 2013 相似文献
846.
847.
848.
849.
Lawrence E. Cline 《Small Wars & Insurgencies》2013,24(2):275-287
The insurgency in southern Thailand has proven to be intractable over the last few years. The insurgents, who comprise several different groups, have largely retained the initiative in a series of relatively unsophisticated operations. Although involving ethnic Malay Muslims – and marked by an increasingly strong Islamist ideology – the insurgency has been predominantly ethnic rather than religious. External jihadist involvement has been minimal at best. The recent coup in Thailand may improve the odds of reaching some form of accommodation with the southern insurgents; but it is likely that the south will remain a continuing security problem for Bangkok. 相似文献
850.
In this paper, we examine the current state of knowledge in the economics literature on the conduct of reconstruction activities in Iraq and Afghanistan. As stabilisation and reconstruction missions grow in importance for units deployed to these regions, it becomes more important to understand what activities can promote economic growth at the local level. While military operations focus on interdicting the insurgency, successful counter-insurgency campaigns have typically addressed the conditions conducive to the insurgency. Mitigating the incentives for individuals to participate in an insurgency is imperative. Well-crafted and timed reconstruction activities can, we argue, attenuate these incentives. 相似文献