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