Aarup, T., Groom, S. and Holligan, P.M. (1990)Aarup, T., Groom, S. and Holligan, P.M. (1990). The processing and interpretation of North Sea CZCS imagery. Neth. J. Sea Res.,25: 3-9.
Aarup, T., 2002Aarup, T., 2002. Transparency of the North Sea and Baltic Sea – a Secchi depth data mining study. Oceanologia, 44: 323-337.