Click on the title of an article to view the full record, including the abstract, DOI and other information. The options on the right of the screen allow you to link to
Citations refers to the number of articles which have cited the item displayed. "All Citations" includes entries in the other Web of Science databases.
Cited References refers to the items which the item displayed has cited, in other words, it is that item's bibliography or reference list.
To return to your list of results, you can use the breadcrumb trail at the top of the page and click on Results.
A DOI (Digital Object Identifier) is a permanent, stable link to a specific item online. It is more stable than a URL, as URLs can change, for example if an organisation restructures its website. You might see the DOI in a reference list or bibliography, as it is a reliable way to locate articles online.