1. 2) Milton B. Horn : Acrylic Resins (Reinhold Publishing Corporation), 1960, p.10.
2. 3) H. Warson : Paint, Oil and Colour Journal, May 1,730 (1970)
3. 4) Milton B. Horn : Acrylic Resins (Reinhold Publishing Corporation), 1960, p.121.
4. 5) H. Warson : Paint, Oil and Colour Journal, May 8,760 (1970)
5. 7) A. G. North : J. Paint Tech., 43 [557], 44 (1971)