Hansen, Rikke Guldborg, Denmark
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NAMMCO Scientific Publications Vol. 11 (2019): Sightings Surveys in the North Atlantic: 30 years of counting whales - Notes
The Geometer: A New Device for Recording Angles in Visual Surveys
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NAMMCO Scientific Publications Vol. 11 (2019): Sightings Surveys in the North Atlantic: 30 years of counting whales - Volume Introduction
Introduction
Abstract Introduction PDF