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Ardea Official journal of the Netherlands Ornithologists' Union |
| Araujo J., Cobos J.M. & Purroy F.J. (1976) Notes on sea-birds 54. Populations of sea birds in the Cabrera archipelago (Balearic islands). ARDEA 64 (1-2): 83-84 |
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geen Nederlandse samenvatting beschikbaar op internet |