by Smit W, Tienstra T.J
Published in Mededelingen - LEI (Netherlands). no. 232 (1980)

by Tienstra T.J
Published in Visserij (1978)

by Tienstra T.J, Boer E.J. de
Published in Visserij (1981)

by Tienstra, T.J. (Ministerie van Landbouw en Visserij, Den Haag (Netherlands)), Boer, E.J. de
Published in Visserij (Netherlands) (01.09.1981)