1. Lippold B. Oral Controlled Release Products, Therapeutic and Biopharmaceutic Assessment, U. Gundert-Remy, H. Möller. Wissenschaftliche Verlagsgesellschaft, Stuttgart 1990; 39
2. Gordon R., Fonner D. Pharmaceutical Dosage Forms: Tablets, H. Lieberman, L. Lachman, J. Schwartz. Marcel Dekker, New York 1989; Vol. 2: 245
3. Melt Granulation in A Laboratory Scale High Shear Mixer