1. USP 23, <1746> Organic Volatile Impurities: Method for Methylene Chloride in Coated Tablets.
2. ICH Guideline for Residual Solvents, Step 4 draft, Q3C, 1997.
3. The in vitro and in vivo performance of aqueous based enteric coats of neutralised hydroxypropyl methyl cellulose phthalate;Bloor;Drug Dev. Ind. Pharm.,1989
4. R.-K. Chang, A comparison of rheological and enteric properties among organic solutions, ammonium salt aqueous solutions, and latex systems of some enteric polymers, Pharm. Technol. Int. 2 (1990) 82–90.
5. U. Körber, Ph.D. Dissertation, Einfluß von Herstellungs- und Lagerungsbedingungen auf die Stabilität kleindimensionierter Pankreatinkomprimate, Erlangen-Nürnberg, 1987.