H. G. Holck

Effect of caffeine upon chess problem solving.

H. G. Holck, 1933 .

The effects of NO2 and salts of NO2 upon established cell lines.

D. M. Pace, J. Thompson, H. G. Holck, 1961, Canadian journal of biochemistry and physiology.

The effect of benzedrine and caffeine upon performance in certain psychomotor tasks.

G. Thornton, G. R. Thornton, H. G. O. Holck, 1939 .