1. Pharmaceutical Applications of Polymorphism
2. Regulatory considerations of pharmaceutical solid polymorphism in Abbreviated New Drug Applications (ANDAs)
3. Food and Drug Administration, Center for Drug Evaluation and Research, Guidance for Industry, ANDAs: Pharmaceutical Solid Polymorphism: Chemistry, Manufacturing, and Controls Information, June 2007, http://www.fda.gov/cder/guidance/index.htm.
4. Polymorphism of Molecular Crystals;Bernstein,2002
5. Federal Trade Commission, Generic Drug Entry Prior to Patent Expiration: An FTC Study, July 2002, http://www.ftc.gov/os/2002/07/genericdrugstudy.pdf.