When the cursor changes from an arrow to a pointing finger, it indicates a link that you may click on to select that item.

The blue buttons at the top can be selected to return to the overview or to run a search for specific information.

Most volumes have been split into two parts, each with separate articles. When you select a specific number, all of the articles will be listed with details of the author, date of publication, language and the size of the file that will be downloaded if you choose that option. Just click on the yellow "Download" button to transfer a copy of the article to your own computer or device.