General introduction
Stienen, E.W.M. (2005). General introduction, in: Stienen, E.W.M. Living with gulls: trading off food and predation in the Sandwich Tern Sterna sandvicensis. Alterra Scientific Contributions, 15: pp. 9-13
In: Stienen, E.W.M. (2005). Living with gulls: trading off food and predation in the Sandwich Tern Sterna sandvicensis. Alterra Scientific Contributions, 15. PhD Thesis. Rijksuniversiteit Groningen: Groningen. ISBN 90-367-2480-5. 192 pp., meer
In: Alterra Scientific Contributions. Alterra: Wageningen, meer
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