authors, Erwin Parthé ... [et al.] ; v. 1 : gw - v. 4 : us. -- Springer, 1993-1994. -- (Gmelin handbook of inorganic and organometallic chemistry / prepared and issued by Gmelin-Institut für Anorganische Chemie der Max-Planck-Gesellschaft zur Förderung der Wissenschaften ; director, Ekkehard Fluck).