Rosenfeld, B. A. <br/><br/>
Stereographic projection   
by B. A. Rosenfeld, N. D. Sergeeva, Tr. Vitaly Kisin 
 - Moscow  MIR publishers  1977 
 - 52p. 
 - Little mathematics library .
<br/><br/><label>Dewey Class. No.: </label>516.36  / N772