Methods in field theory   
ed. by Roger Balian, Jean Zinn-Justin 
 - Amsterdam  North-Holland Publishing Company  1981 
 - xx, 386p. 
 - Les houches  session XXVIII .
<br/><br/><label>ISBN: </label>0720404339 
<br/><br/><label>Dewey Class. No.: </label>530.14  / N761;1