1. Babayan , V. K. 1978 Beverages containing poly-glycerol ester cloud. U. S. Patent 4093750
2. Garti , N. 1979 Emulsion cloudy from essentials oils for citrus beverages. Israeli Patent 58111
3. Poly-glycerol esters-optimization and techno-economic evaluation;Garti;Journal of the American Oil Chemists Society,1981
4. Light transmission by dilute emulsions;Goulden;Transactions of the Faraday Society,1958