1. Meyer G,Farbe+Lack,69, (7) 528, 1963.
2. Meyer G,Farbe+Lack,71, (2) 113, 1965.
3. Adrian G, Gerhard A, Bittner A and Gawol M,European Supplement to Polymer Paint Colour Journal,62, 1981.
4. Leidheiser H, JrJ. Coat. Tech.,53, (678), 29, 1981.
5. Gerhard A and Bittner A,J. Coat. Tech.,58, (740), 59, 1986.