1. Direct purchase: Many well-known academic databases, such as WebofScience, Elsevier's ScienceDirect, Springer's SpringerLink, etc. , providing SCI literature purchase service. These databases usually need to be subscribed by schools or research institutions, and individual users may have to pay higher fees.
2. Library resources: Libraries of many universities and research institutions subscribe to these academic databases, and students and faculty can access them free of charge through their online accounts. In addition, some libraries also provide document delivery services, which can send the required documents to users by e-mail or mail.
3. Open access to resources: With the development of the open access movement, more and more SCI journals began to provide open access articles. Users can get these articles for free through platforms such as GoogleScholar and PubMedCentral.
4. Mutual assistance and sharing: In some academic communities, such as ResearchGate and Academia.edu, users can share and download other people's research results. However, it should be noted that there may be some copyright problems in the literature obtained in this way.
5. Scientific research cooperation: If possible, you can get the SCI documents they have through cooperation with other researchers. This can not only save the cost of purchasing documents, but also enhance academic exchanges and cooperation.
Generally speaking, there are various ways to obtain SCI documents, and users can choose the appropriate way according to their own needs and economic conditions.