首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   41030篇
  免费   1624篇
  2020年   519篇
  2019年   817篇
  2018年   910篇
  2017年   1118篇
  2016年   1201篇
  2015年   929篇
  2014年   901篇
  2013年   14043篇
  2012年   1041篇
  2011年   1066篇
  2010年   1065篇
  2009年   1069篇
  2008年   999篇
  2007年   904篇
  2006年   818篇
  2005年   564篇
  2004年   561篇
  2003年   520篇
  2002年   492篇
  2001年   485篇
  2000年   423篇
  1999年   492篇
  1998年   452篇
  1997年   417篇
  1996年   393篇
  1995年   404篇
  1994年   349篇
  1993年   406篇
  1992年   381篇
  1991年   290篇
  1990年   284篇
  1989年   296篇
  1988年   299篇
  1987年   307篇
  1986年   287篇
  1985年   404篇
  1984年   433篇
  1983年   439篇
  1982年   380篇
  1981年   379篇
  1980年   422篇
  1979年   406篇
  1978年   394篇
  1977年   418篇
  1976年   371篇
  1975年   380篇
  1974年   286篇
  1973年   259篇
  1972年   246篇
  1970年   216篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
911.
912.
913.
914.
915.
916.
917.
918.
Abstract. In postcommunist politics many of the ‘new national right’ political formations in Eastern Europe and the former Soviet Union have joined forces with the communist successor parties. Such a combination is, on the surface, a baffling mixture; how is it possible that two fundamentally different ideological approaches (nationalism and internationalist socialism) can coexist and actively cooperate to form such a potent political force? What are the conditions under which such political cooperation emerges? This article attempts to answer the above questions by, first, empirically testing the effects of several factors which might explain postcommunist–nationalist political cooperation. Second, the quantitative analysis is buttressed with a comparison of the Hungarian and Russian cases. The analysis indicates that the most important variable associated with the emergence of postcommunist–nationalist political cooperation is the effect of previous regime type.  相似文献   
919.
Abstract. In the text some questions about the genesis of radical nationalism on the former Yugoslav territory are discussed. The author's main thesis is that what happened during the outburst of nationalism was an alteration in the status of national identification, particularly in its relation to ‘supranational’ Yugoslav identification; that is, the eruption of radical nationalism was the result of reorganisation within an identification matrix. This thesis is first clarified by a short historical survey of the status of national identification before the outburst of nationalism, and secondly by an analysis of the main changes in the identification matrix during the outbreak of nationalism. Additionally, some of the main characteristics of political socialisation in the Yugoslav socialist state (especially the function of the value ‘brotherhood and unity’), as well as the possibility for future non-conflictual relations between the nations of former socialist Yugoslavia are discussed.  相似文献   
920.
Historical records indicate that the fertile soils of the western and central Wimmera Plains of Victoria, Australia formerly supported grassy woodlands on rises and flats, and grasslands on shallow depressions and clay plains. Soil type and micro-relief appear to have been the major factors that determined the distribution of these communities. Burning of the woodlands by Aborigines may have contributed to their open grassy nature. The few ungrazed remnants of Buloke (Allocasuarina luehmannii) woodland support a suite of species that are absent from or uncommon in other Buloke woodland remnants in the region. This work demonstrates that in districts where little intact native vegetation remains, investigation of the distribution and floristic composition of the pre-settlement vegetation can provide useful information for the maintenance and restoration of remnant vegetation.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号