E. Piironen

The Synthesis of Ascorbigen from Ascorbic Acid and 3-Hydroxymethylindole.

A. Virtanen, H. Flood, G. Haslewood, 1962 .

The effect of thiocyanate in nutrition on the iodine content of cow's milk

A. Virtanen, E. Piironen, 1963, Zeitschrift fur Ernahrungswissenschaft.