1. The Mechanism of Acid-Rain Etching of Automotive Coatings
2. PPG Industries Inc., US Patent No. 4 798 745 (1989).
3. Nippon Paint Co. Ltd., Jpn. Patent Applic. No. 63 046 267 (1988).
4. Nippon Paint Co. Ltd., Eur. Patent No. 336 428 (1989).
5. International Paint Plc., Eur. Patent No. 259 172 A2 (1988).