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  "Description": "The German national forest inventory uses angle count\nsampling, a sampling method first published as `Bitterlich, W.:\nDie Winkelzählmessung. Allgemeine Forst- und\nHolzwirtschaftliche Zeitung, 58. Jahrg., Folge 11/12 vom Juni\n1947` and extended by Grosenbaugh\n(<https://academic.oup.com/jof/article-abstract/50/1/32/4684174>)\nas probability proportional to size sampling. When plots are\nlocated near stand boundaries, their sizes and hence their\nprobabilities need to be corrected.",
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