1. S. A. Kedik (ed.), Polymers for Pharmaceutical Technologies [in Russian], Moscow (2011), pp. 150 – 500.
2. I. M. Pertsev (ed.), Pharmaceutical and Biological Aspects of Ointments [in Russian], NFAU: Zolotye stranitsy, Khar’kov (2003), pp. 50 – 175.
3. Shayne Cox Gad, Pharmaceutical Manufacturing Handbook Production and Processes North Carolina, John Wiley & Sons Inc., New Jersey, USA (2008), pp. 48 – 96.
4. Leaflets produced by FMC BioPolymer, Alginates (2011); URL: http: // www.fmcbiopolymer.com. (Viewed on June 14, 2014).
5. Bentonite. Technical information. Brenntag. URL: http: // www.brenntagspecialties.com / en / pages / Markets Industries-Served / Pharmaceuticals / Bentonite / index.html. (Viewed on June 16, 2014).