With limiting, even an Easy Search can provide a fair amount of flexibility. You can choose any or all of the limiting options. You can allow limiting a search result to full-text articles only, thus allowing users to eliminate any articles in a search result that have only an abstract or a reference. If you allow limiting to full-text articles, the limitation can be set on or off by default. If you select on , users will see that the box is already checked and results will automatically be limited to full-text articles.
Users can still click on a check box to remove the limitation if they so choose.
Another option is to allow limiting to refereed journals. You can limit searching in this case to peer reviewed journals. If you allow limiting to refereed journals, the limitation can be set on or off by default. You can also allow limiting by publication date to confine a search result to articles published on, after or before a certain date or between two dates. Entering the date or using check boxes can do search limiting to date.