There are also free literature download databases in China, some of which are not only in Chinese but also in English. Students often use the Science Space Library, Library 80, Penguin Papers and so on.
SCI will not retrieve and include articles hired and published by a journal before it becomes a SCI journal, but only articles published after SCI retrieves the journal will be included by SCI. This problem is still the key issue in the publication of SCI papers, which is related to whether the articles published by the author can be successfully retrieved and directly related to the author's personal promotion.
SCI literature concern
SCI, the abbreviation of Science Citation Index, is an internationally recognized main retrieval tool for scientific statistics and scientific evaluation. It contains about 3,500 kinds of core journals in the fields of mathematics, science, chemistry, agriculture, forestry, medicine, life science, astronomy, geography, environment, materials, engineering technology and so on.
As one of the most famous retrieval publications in the world, SCI has its own retrieval methods and principles. Students can search for the keyword: web of science in the search engine and find the search website. It is a world-famous comprehensive academic information resource library, which contains nearly ten thousand kinds of most influential academic resources in natural science, engineering technology and other research fields.