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2. Indirect copper contamination of milk;Duin;Official Org. K. ned Zuivelbond.,1969
3. Adsorption of copper on stainless steel;Dunkley;J. Dairy Sci.,1959
4. Copper in milk and its role in catalyzing the development of oxidized flavors (a review);Haase;Milchwissenschaft.,1970
5. Copper in pipeline milking installations;Johansson;Svenska Mejeritidningen.,1963