When you click on the image to access Digital library.

The search can be performed according to the author, title or the term in the titleand some of the library's units were added, and the contents.
Also, the search can be defined according to the record label and place of publication.

Each of the library unit is determined according to the an area that has been investigated.
Search terms are available by clicking on the following link:

In The master and Doctoral thesisin addition to these basic search, you first select whether we are talking about phd or master's,
then you can use the author, tutorial or a section of a title.

The search is always carried out according to the the original letter: a literary unit — cyrillic or latin.