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Artturi Virtanen (1964)
Milk Production Without Proteins (German presentation)

Artturi Virtanen (1961)
Opportunities of Nutrition for Mankind and Chemistry (German presentation)

Artturi Virtanen (1960)
On Biologically Active Substances in Our Crops (German presentation)

Artturi Virtanen (1952)
Atmospheric nitrogen as a sustainer of life on earth (German presentation)