The University of Szeged Klebelsberg Library provides help via email or in person with the following reference management tools:
EndNote Web is the online reference management service of Clarivate Analytics with add-ons for Windows and Mac.
If registered from the IP address of the University of Szeged, it is available from anywhere (without the need of a proxy server).
For registered users of Web of Science, no additional registration is required as they can also use it with their WoS account.
The Help Centre of EndNote can be find here: https://www.myendnoteweb.com/help/en_us/ENW/help.htm
Zotero has a free standalone desktop application, built-in components for both MS Word and Libre Office, and a plug-in for your browser.
It provides online storage for synchronization between multiple computers.
An overview of Zotero’s features and capabilities can be found here: https://www.zotero.org/support/quick_start_guide