Citavi – bibliographic manager and organizer. The free version allows to save up to 100 records.
EndNote Online – a program that allows you to quickly save search results and organize the necessary bibliographic information from various databases and platforms, such as Web of Science, PubMed, Google
Mendeley – free program for bibliographic information management. It allows users to save and view research materials in PDF format and also is connected to the international social network of scientists. The tool serves to manage the library, collaborate on articles, find like-minded researchers, and study research trends.
Zotero – free, easy to use tool that helps to collect, manage, cite, and share research sources.