BOOKQUE

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Breeding Birds in Trouble: A Framework for an Action Plan in TheWadden Sea
Kees Koffijberg , John Frikke , Bernd Hälterlein , Gundolf Reichert , Hatmut Andretzke
· 2016
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Managing Predation Risk for Breeding Birds in the Wadden Sea: Results from a Workshop in Tönning, Schleswig-Holstein, 7-8 March 2017
Jutta Leyrer , John Frikke , Bernd Hälterlein , Kees Koffijberg , Peter Körber , Gundolf Reichert
· 2019
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Trends of Migratory and Wintering Waterbirds in the Wadden Sea: 1987/1988-2019/2020
Romke Kleefstra , Thomas Bregnballe , John Frikke
· 2022
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Breeding Birds in the Wadden Sea: Trends 1991-2017 and Results of Total Counts in 2006 and 2012
Kees Koffijberg , Thomas Bregnballe , John Frikke , Benjamin Gnep , Bernd Hälterlein , Morten Bentzon Hansen , Peter Körber , Gundolf Reichert , Jens Umland , Tom van der Meij
· 2020
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Trends of Migratory and Wintering Waterbirds in the Wadden Sea 1987/1988-2016/2017
Romke Kleefstra , Menno Hornman , Thomas Bregnballe , John Frikke , Klaus Günther , Bernd Hälterlein , Peter Körber , Jürgen Ludwig , Gregor Scheiffarth
· 2019
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Strandtudsen i Nationalpark Vadehavet
Jesper Tofft , John Frikke
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Rapport over Plancius Foundations togt til Østgrønland med M: (DPC-ref.#: 551-02).
John Frikke , Plancius Foundation
· 1997
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Fugle i Varde Kær
John Frikke , Jeppe Ebdrup , Kim Fischer
· 1987
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Rastende vandfugle i Vadehavet 1980-2010: status, beskyttelse, benyttelse og påvirkninger
Karsten Laursen , John Frikke , Dansk Ornitologisk Forening
· 2013
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Trækkende vandfugle ved det fremskudte dige ved HƠjer, 1982: Migratory waterfowl and waders at a new dike in the Danish Wadden Sea, 1982
Karsten Laursen , Iver Gram , John Frikke
· 1984