Scheffers Georg <br/><br/>
Theorie der flachen 

 -  1923 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>24517 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential geometry
<br/><br/><label>Dewey Class. No.: </label>B63:3, F3