1. A record of pilchard eggs and larvae collected during surveys made in 1939 to 1941. US Fish and Wildlife Service;Ahlstrom;Special Scientific Report,1948
2. High-speed plankton sampler;Ahlstrom;United States Fish and Wildlife Service Fisheries Bulletin,1958
3. Submersible microscopes and image processing technologies: a new way to look at zooplankton types, sizes, distribution for more effective monitoring of oceanic ecosystem dynamics;Akiba;Sea Technology,1999
4. Aksnes, D. L. & Magnesen, T. (1983). Distribution, development, and production of Calanus finmarchicus (Gunnerus) in Lindaspollene, Western Norway 1979. Sarsia, 68, 195-207.
5. Estimation techniques used in studies of copepod population dynamics — a review of underlying assumptions;Aksnes;Sarsia,1997