Reference

M. Sakomoto, M.M. Tilzer, R. Gächter, H. Rai, Y. Collos, P.A. Tschumi, P. Berner, D. Zbaren, J. Zbaren, Martin T. Dokulil, u.a. (1984): Joint field experiments four comparisons of measuring methods of photosynthetic production – J. Plankton Res. – 6(2).