Demonstratio mathematica 

 - Warszawa :  Politechnika Warszawska. 
 - v. 
 - Quarterly 
 - v. 1- 1969- 
<br/><br/><label>ISSN: </label>0420-1213 
 = Demonstratio mathematica 
 = Demonstr. math. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Periodicals