1. Piroxicam monohydrate: a zwitterionic form C15H13N3O4S·H2O;Bordner;Acta Crystallogr.,1984
2. Brittain, H.G., Grant, D.J.W., 1999. Effects of polymorphism and solid state solvation on solubility and dissolution rate. In: Brittain, H.G. (Ed.), Polymorphism in Pharmaceutical Solids. Marcel Dekker, New York, pp. 279–330.
3. On the polymorphism of pharmaceuticals and other molecular crystals. I: Theory of thermodynamic rules;Burger;Microchim. Acta,1979
4. Collect Software, 1998. Nonius, BV, Delft, The Netherlands.