1. Importance of Fluorine in Enamels;Bock;Chem.-Ztg,1908
2. Tin Oxide Substitute;Eyer;Stahl u. Eisen,1908
3. White Enamel of Great Covering Power;Cie;French Pat,1908
4. Zirconia Enamel;Hartmann;Z. Anorg. Chem,1908
5. The Function of Fluorine Compounds in Enamels;Mayer;Sprechsaal,1909