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13by Pozdnyakov, WladimirSubjects: “...Visual observation...”
Published 2007
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14
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15by Pozdnyakov, WladimirSubjects: “...Visual observation...”
Published 2007
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Dataset -
16by Rachold, VolkerSubjects: “...Visual observation...”
Published 2000
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Dataset -
17by Pozdnyakov, WladimirSubjects: “...Visual observation...”
Published 2007
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Dataset -
18by König-Langlo, GertSubjects: “...Visual observation...”
Published 2005
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Dataset -
19by König-Langlo, GertSubjects: “...Visual observation...”
Published 2005
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Dataset -
20by König-Langlo, GertSubjects: “...Visual observation...”
Published 2005
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Dataset