Handbook on the physics and chemistry of rare earths; V.23   
ed. by K. A. Gschneidner, L. R. Eyring 
 - Amsterdam  North-Holland  1996 
 - xiv, 648p 
<br/><br/><label>ISBN: </label>044482507X 
<br/><br/><label>Dewey Class. No.: </label>546.410202  / N78.23 "R"