By de Graaf G.J.   in Mangroves and Salt Marshes

ISSN:1386-3509|2|3|159-166

Springer Publishing Company ‎(1998)‎

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By Ofori-Danson P.K.   de Graaf G.J.   Vanderpuye C.J.   in Fisheries Research

ISSN:0165-7836|54|2|267-277

Elsevier‎(2002)‎

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By Jager L.P.   de Graaf G.J.   Widjaja-Greefkes H.C.A.   in European Journal of Pharmacology

ISSN:0014-2999|331|2|325-331

Elsevier‎(1997)‎

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By Jager L.P.   De Graaf G.J.   Widjaja-Greefkes H.C.A.   in European Journal of Pharmacology

ISSN:0014-2999|346|1|71-76

Elsevier‎(1998)‎

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By Jager L.P.   De Graaf G.J.   Widjaja-Greefkes H.C.A.   in Toxicology in Vitro

ISSN:0887-2333|10|5|595-608

Elsevier‎(1996)‎

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By Van der Knaap M.   Katonda K. I.   De Graaf G. J.   in Aquatic Ecosystem Health & Management

ISSN:1463-4988|17|1|4-13

Elsevier‎(2014)‎

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By Van der Knaap M.   Kamitenga D. Manara   Many L. Ngoie   Tambwe A. Esube   De Graaf G. J.   in Aquatic Ecosystem Health & Management

ISSN:1463-4988|17|1|34-40

Elsevier‎(2014)‎

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