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1von: Foken, Th.[2022], Reprint 2022, De Gruyter
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2von: Balzer, K.[1984], Reprint 2024, De Gruyter
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3von: Behrens, K.[1985], Reprint 2024, De Gruyter
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4
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5von: Barta, G.[2022], Reprint 2022, De Gruyter