1 literature reference:

Author: Næsje, T.F., C.J. Hay, N. Nickanor, J.H., Strand, R. Koekemoer and E.B. Thorstad
Year: 2004
Title: Fish populations, gill net catches and gill net selectivity in the Kwando River, Namibia.
Source: NINA Project Report 27. 64 p.