Schnack-Schiel, S.B., D.N. Thomas, C. Haas, G.S. Dieckmann & R. Alheit. (2001). The occurrence of the copepods Stephos longipes (Calanoida) and Drescheriella glacialis (Harpacticoida) in summer sea ice in the Weddell Sea, Antarctica. Antarctic Science 13 (2): 150-157.