Zooplankton and the discontinuity layer in relation to echo traces in the Oslofjord ; The autumn spawning group of herring in the northern North Sea ; Investigations on herring, Clupea harengus L., from the Norwegian Skagerak coast during the years 1963-64 ; Studies on serum esterase in herring and sprat ; Studies on hemoglobins of some gadoid fishes
Bok Engelsk 1969