Set-Valued Mappings, Selections and Topological Properties of 2x 
/ Edited by W. M. Fleischman 
 - Berlin  Springer-Verlag  1970 
 - viii,109p. 
 - Lectures notes in mathematics (171) .
<br/><br/><label>ISBN: </label>3540052933 
<br/><br/><label>Dewey Class. No.: </label>513.83  / FLE/L