Trotha Hartmut Von <br/><br/>
Dissertationes Mathematicae 

 - Warszawa  1981 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>193 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B, M1