全文获取类型
收费全文 | 1648篇 |
免费 | 65篇 |
专业分类
1713篇 |
出版年
2020年 | 19篇 |
2019年 | 21篇 |
2018年 | 40篇 |
2017年 | 37篇 |
2016年 | 51篇 |
2015年 | 45篇 |
2014年 | 31篇 |
2013年 | 597篇 |
2012年 | 56篇 |
2011年 | 54篇 |
2010年 | 72篇 |
2009年 | 60篇 |
2008年 | 37篇 |
2007年 | 75篇 |
2006年 | 69篇 |
2005年 | 20篇 |
2004年 | 31篇 |
2003年 | 22篇 |
2002年 | 18篇 |
2001年 | 17篇 |
2000年 | 10篇 |
1999年 | 15篇 |
1998年 | 15篇 |
1997年 | 6篇 |
1996年 | 8篇 |
1995年 | 18篇 |
1994年 | 11篇 |
1993年 | 9篇 |
1992年 | 12篇 |
1991年 | 9篇 |
1990年 | 8篇 |
1989年 | 12篇 |
1988年 | 13篇 |
1987年 | 16篇 |
1986年 | 11篇 |
1985年 | 14篇 |
1984年 | 11篇 |
1983年 | 9篇 |
1982年 | 10篇 |
1981年 | 12篇 |
1980年 | 14篇 |
1979年 | 7篇 |
1978年 | 8篇 |
1977年 | 6篇 |
1976年 | 8篇 |
1975年 | 8篇 |
1972年 | 10篇 |
1971年 | 5篇 |
1970年 | 7篇 |
1969年 | 5篇 |
排序方式: 共有1713条查询结果,搜索用时 15 毫秒
101.
Gregory V. Braun 《Journal of archaeological science》2012,39(1):1-10
Petrographic data and macroscopic observations are used to examine some of the social contexts and functional considerations underlying the production of pottery containers and smoking pipes at Antrex, a Middle Ontario Iroquoian village site located in southern Ontario. Results suggest that while pottery was produced by small groups of people for widespread consumption within the community, pipes were made by individuals for their own personal use. Overall, this research supports the hypothesis that by the beginning of the Late Woodland period, a shift away from communal ritual practices led by ritual specialists or shamans had occurred. Smoking might have, in some contexts, become a solitary religious experience. 相似文献
102.
Knud J. V. Jespersen Vilho Tervasmäki Bernt Schiller Jan Glete 《Scandinavian journal of history》2013,38(2):183-190
Feldbæk, Ole, Slaget på Reden (The battle of Copenhagen), K0benhavn (1985), 282 pp., ill. TVÅKAMMARRIKSDAGEN 1867–1970. Ledamöter och valkretsar. På riksdagens uppdrag utarbetad av Andreas Tjerneld. Band 2, Östergötlands, Jönköpings, Kro‐nobergs, Kalmars, Gotlands och Hallands län. (The bicameral parliament 1867–1970). Prepared by Andreas Tjerneld at the request of parliament. Volume 2. The provinces of Östergötland, Jönköping, Kronoberg, Kalmar, Gotland and Halland). Riksdagen och Almqvist & Wiksell International, Stockholm (1985), 438 pp. Martti Turtola Tornionjoelta Rajajoelle. Suomen ja Ruotsin salainen yhteistoiminta Neuvosto‐liiton hyökkäysen varalle vuosina 1923–1940. Puolustuspoliittinen vaihtoehto. (From the River Tornio to the Border River. The secret collaboration between Sweden and Finland against Soviet attack 1923–1940. A defence policy alternative) (Porvoo, 1948). 259 P#lb Nissborg, Agnete, Danmark mellan Norden och väst (Denmark between the North and the West). (Acta Universitatis Upsaliensis. Skrifter utgivna av Statsvetenskapliga föreningeni Uppsala, vol. 101, Uppsala 1985.) ISBN 91–554–1676–4. 147 pp. English summary. The North Sea. A Highway of Economic and Cultural Exchange. Character — History, Edited by Arne Bang‐Andersen, Basil Greenhill, Egil Harald Grude, (Norwegian University Press, Universitetsforlaget, Oslo, 1985). NOK 260, ISBN 82–00–072 67–3. 相似文献
103.
A. V. Berezkin V. A. Kolosov M. E. Pavlovskaya N. V. Petrov L. V. Smirnyagin 《Eurasian Geography and Economics》2013,54(8):607-634
In the first Soviet paper written on electoral geography in the USSR, a team of scholars analyzes results of recent elections to the Congress of People's Deputies. An introductory section explains the rationale for greater attention to electoral geography and assesses Western research from a Soviet perspective. Interesting spatial insights (supplemented by maps) are offered on whether existing electoral districts provide equitable representation for the population, on voter turnout (including negative voting against “establishment” candidates), and the level of social-political activism. A concluding section surveys prospects for the further participation of geographers in the study of electoral processes (translated by Jay K. Mitchell, PlanEcon, Inc., Washington, DC 20005). 相似文献
104.
Tiina Väre Juho-Antti Junno Jaakko Niinimäki Markku Niskanen Sirpa Niinimäki Milton Núñez 《Post-Medieval Archaeology》2013,47(2):368-379
Summary: Mummified human remains have been preserved in the cool, well-ventilated crypts of old Finnish churches, which were popular burial sites among the elite of the early modern period. Here, the authors present the results of a computed tomography study of the remains of an early 17th-century vicar of Keminmaa. They examined the preservation of his remains and made several pathological findings; the causes of the latter possibly had a severe impact on his health. He was a large man who achieved relative longevity for his time, although he suffered from conditions related to obesity. There were also potential indications of tuberculosis. Inflammatory changes, for example, had afflicted his spine. 相似文献
105.
106.
107.
108.
Underwater gas and liquid escape from the seafloor has long been treated as a mere curiosity. It was only after the advent of the side‐scan sonar and the subsequent discovery of pockmarks that the scale of fluid escape and the moon‐like terrain on parts of the ocean floor became generally known. Today, pockmarks ranging in size from the ‘unit pockmark’ (1–10 m wide, < 0.6 m deep) to the normal pockmark (10–700 m wide, up to 45 m deep) are known to occur in most seas, oceans, lakes and in many diverse geological settings. In addition to indicating areas of the seabed that are ‘hydraulically active’, pockmarks are known to occur on continental slopes with gas hydrates and in association with slides and slumps. However, possibly their potentially greatest significance is as an indicator of deep fluid pressure build‐up prior to earthquakes. Whereas only a few locations containing active (bubbling) pockmarks are known, those that become active a few days prior to major earthquakes may be important precursors that have been overlooked. Pockmark fields and individual pockmarks need to be instrumented with temperature and pressure sensors, and monitoring should continue over years. The scale of such research calls for a multinational project in several pockmark fields in various geological settings. 相似文献
109.
Radiocarbon Chronology of the Siberian Paleolithic 总被引:2,自引:0,他引:2
We have compiled 462 C-14 determinations for 120 Paleolithic and Mesolithic sites from Siberia and the Russian Far East. The Mousterian sites are dated to ca. 46,000–28,500 BP. The Middle–Upper Paleolithic transition dates to ca. 43,300–28,500 BP. Although there are a few earlier sites, most of the Upper Paleolithic sites are dated to the time interval between ca. 34,000 BP and 10,000 BP. The earlier Upper Paleolithic stage is characterized by macroblade technology and is radiocarbon-dated to ca. 34,000–20,000 BP. The earliest microblade technology occurs in the late stage of the Upper Paleolithic, dated to ca. 23,000–20,000 BP, but the majority of microblade sites is dated to ca. 20,000–11,000 BP. The Final Paleolithic (Mesolithic) sites date to ca. 12,000–6000 BP. At ca. 13,000–11,000 BP, the earliest Neolithic appeared in both the Russian Far East (Amur River basin) and the Transbaikal. The Paleolithic–Neolithic transition occurred ca. 13,000–6000 BP. 相似文献
110.