1. Kr. StØren, Koldlagring av smØr og ost, Norsk Meieritidende,30, 111–120, (1930).
2. W. White, C. S. Trimble and H. L. Wilson, Keeping quality of butter made from cream of various acidities. U. S. Dept. of Agriculture, Techn. Bull. 159, 1929.
3. L. A. Rogers and C. E. Gray, Bur. An. Ind. U. S. Dept. Agric., Bull. 114, (1909).
4. L. A. Rogers, Proc. 3rd Intern. Congr. Refrigeration2, 667 (1913), geciteerd in Rogers' ass. Fundamentals of Dairy Science, 2nd Ed. p. 92.
5. P. S. Arup en G. van B. Gilmour, Investigations to test bacteriologically and chemically the effect of cold storage on the keeping qualities of Irish Free State Creamery Butter, J. Dept. of Agric., Irish Free State31, 179–189, (1932)