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Ardea Official journal of the Netherlands Ornithologists' Union |
| Haverschmidt F. (1930) Invasie van Kleine Alken (Alle alle (L.)) en Papegaaiduikers (Fratercula arctica (L.)) na de stormen in de tweede helft van December 1929. ARDEA 19 (1-2): 63-65 |
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