G. L. Spoek

The relationship between blood haemocyanin level, oxygen uptake, and the heart-beat and scaphognathite-beat frequencies in the lobster homarus gammarus

G. L. Spoek, 1974 .

EXPERIMENTS ON THE HAEMOCYANIN-OXYGEN EQUILIBRIUM OF THE BLOOD OF THE EDIBLE SNAIL (HELIX POMATIA L.).

H. P. Wolvekamp, H. Bakker, G. L. Spoek, 1964, Comparative biochemistry and physiology.

The Opilionida (Arachnida) of the Netherlands

G. L. Spoek, 1963 .