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Situation actuelle de la loutre, Lutra lutra, en Belgique et problématique de sa conservation ; The European otter in Belgium today: conservation problems
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The Unionid mussels (Mollusca, Bivalvia) of the Belgian upper river Meuse: an assessment of the impact of hydraulic works on the river water self-purification
Expansion et régression: deux mots clés de la dynamique des populations du martin pêcheur (Alcedo atthis) ; Population fluctuations in the European kindfisher (Alcedo atthis): a me...