1. Guidance for Industry: ICH Q1A(R2) Stability Testing of New Drug Substances and Products 2003
2. Guidance for Industry: ICH Q1D Bracketing and Matrixing Designs for Stability Testing of New Drug Substances and Products 2003
3. Draft ICH Consensus Guideline Q1E Stability Data Evaluation 2003
4. Use of factorial designs in stability testing;Wright
5. P. Nakagaki AAPS Annual Meeting 1990