Commentarii mathematici Helveltici 

 - Zürich :    Orell Füssli Verlag,    1929- 
 - v. ;    24 cm. 
 - Quarterly 
 - Vol. 1, fasc. primus- 
<br/><br/><br/> Text in English, French, German or Italian. 
<br/><br/><label>ISSN: </label>0010-2571 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Mathematics -- Periodicals
<br/><br/><label>Dewey Class. No.: </label>510.5