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Articles published in respected peer-reviewed scientific journals are preferred for up-to-date reliable information. Scientific literature contains two major types of sources: primary publications that describe novel research for the first time, and review articles that summarize and integrate a topic of research into an overall view.
Provides an RDF data set about scientific publications and related entities, such as authors, institutions, journals, and fields of study. The data set is based on the Microsoft Academic Graph. [106] [107] Free University of Freiburg: MyScienceWork: Science Database includes more than 70 million scientific publications and 12 million patents. Free
For example, a paper reviewing existing research, a review article, monograph, or textbook is often better than a primary research paper. When relying on primary sources, extreme caution is advised. Wikipedians should never interpret the content of primary sources for themselves ( see Wikipedia:No original research and Wikipedia:Neutral point ...
Scientific papers have been categorised into ten types. Eight of these carry specific objectives, while the other two can vary depending on the style and the intended goal. [4] Papers that carry specific objectives are: [4] An original article provides new information from original research supported by evidence.
Research libraries will hold paper guides to authoritative sources. The most useful is The American Historical Association's Guide to Historical Literature, edited by Mary Beth Norton and Pamela Gerardi 2 vol (1995), which is an annotated bibliography of authoritative sources in all fields of history.
Sometimes multiple sources provide a fuller picture when taken together, such as when source A points out the reaction to a particular event in one country while source B covers the reaction to the same event in a second country. Sometimes it will be good encyclopaedic writing to combine the information from the two sources into a single sentence.
Many papers published in medical journals are primary sources for facts about the research and discoveries made. A secondary source summarizes one or more primary or secondary sources to provide an overview of current understanding of the topic, to make recommendations, or to combine results of several studies.
For example, century-old love letters on display at a museum are primary sources; a secondary source might analyze the contents of these letters. The fact that the analysis is based on these letters would be evident from the description in the source, even if the paper contained no footnotes.