1. Bartell, F. E. u. M. van Loo: Colloid chemistry of color varnish. Ind. Eng. Chem. 17, 925 (1925).
2. Brier, J. C. u. A. M. Wagner: Laboratory apparatus for preparing duplicate, uniform paint, varnish and lacquer films. Ind. Eng. Chem. 20, 759 (1928).
3. Eastman, W. H. u. W. L. Taylor: Effect of foreign oleaginous seeds, when crushed with flaxseed, on the drying and bodying properties of linseed oil. Ind. Eng. Chem. 19, 896 (1927).
4. Enna, F. G. A.: On the employment of some iron compounds as driers of leather japans. J. Int. Soc. Leather Trades Chem. 10, 311 (1926).
5. Enna, F. G.: Die Prozesse der Lacklederherstellung. Leather World 22, 36 (1930).