R[2]Sn(X)OR' , RSnX(OR')[2] , and RSnX[2](OR') / by Herbert Schumann and Ingeborg Schumann ; gw, us. -- Springer, 1989. -- (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 ; [systemno. 46] . Sn, organotin compounds ; pt. 17).