In addition to EndNote and EndNote online, there are also free programs with similar features. One of these is Mendeley. Mendeley is a software program that will help you collect and organise your references. You can also read and comment in PDF files as well as create citations and literature lists in your Word documents. As Mendeley is free of charge, you can continue to use the program also after your studies, or if you change university.
Mendeley Help Guides
Here are instructions on how to use Mendeley and help pages for all the features.