Dr. J.J. Zeeberg: Tabel 2. Terminology im RIVO report C008/03 des RIVO-Netherlands Institute for Fisheries Research, February 2003 (PDF; 300 kB)
Dr. J.J. Zeeberg: Tabel 1. Terminology catch statistics RIVO report Number: C028/04 des RIVO-Netherlands Institute for Fisheries Research, April 2004 (PDF; 1,1 MB)