Publications de l'Institut mathématique :  2013 / 
Matematički institut (Srpska akademija nauka i umetnosti). 
 - [Beograd] :   Mathematical Institute, Serbian Academy of Sciences and Arts. 
 - v. 
<br/><br/><label>Subjects--Index Terms: </label>მათემატიკა პერიოდიკა 
<br/><br/><label>Universal Decimal Class. No.: </label>51(05)