1. B.K. Green, L. Schleicher; US Patent 2730456 (1956).
2. B.K. Green, L. Schleicher; US Patent 2800457 (1957).
3. Effects of selected variables on the microencapsulation of solids;Luzzi;J. Pharm. Sci.,1967
4. Etude préliminaire de la microencapsulation d'huiles essentielles par coacervation complexe;Arneodo;STP Pharm. Sci.,1986
5. R. Krumbholz, A. Lamprecht, C.-M. Lehr, U. Schäfer, N. Schirra, M. Treitz, German Patent Application 19830375.0 (1998).