1. Membrane-coated tablets: a system for the controlled release of drugs;Kallstrand;J. Pharm. Sci.,1983
2. Elementary osmotic pump;Theeuwes;J. Pharm. Sci.,1975
3. Water in polymers;Barrie,1968
4. On the permeability of various tablet coatings to water vapour and oxygen;List;Acta Pharm. Technol.,1982
5. Synthetic Polymeric Membranes;Resting,1971