INTERNATIONAL CONFERENCE ON GEOMETRIC TOPOLOGY (Warszawa)(1978) <br/><br/>
Proccedings. 

 -  1980 
<br/><br/><label>Standard No.: </label>15141 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B3161p1,N78, M0