1. O.Julskjaer The Influence of Nitrogen Packing on the Keeping Qualities of Whole Milk Powder at Different Storage Temperatures XVI. Internationaler Milchwirtschaftskongreß Saertryk1962.
2. C. H.Lea Changes in Preparation and Storage of Dehydrated Foods Proceedings of the Conference “Fundamental Aspects of the Dehydration of Foodstuffs ” Aberdeen1958 S.191.
3. Adsorption of Gases in Multimolecular Layers