Metal, chemical reactions with metals antimony to barium / authors, Erich Best, ... [et al.] ; editors, Ernst Koch, Wolfgang Huisl ; chief editor, Ernst Koch
(Gmelin handbook of inorganic chemistry / prepared and issued by Gmelin-Institut für Anorganische Chemie der Max-Planck-Gesellschaft zur Förderung der Wissenschaften ; director, Ekkehard Fluck ; system no. 54 . W, tungsten ; suppl. v. A6a)