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Roth, Veronica 1988 [3] |
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Rotinen, Jaana Marja 1970 [1] |
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Royal Society for the Protection of Birds [1] |
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Róbert Arnar Stefánsson [1] |
Róbert Arnar Stefánsson 1972 [15] |
Róbert Bjarnason [1] |
Róbert Farestveit 1985 [1] |
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