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1von: Bhatnagak, R. K.2022, Reprint 2021, De Gruyter
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2
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3von: Acbivlelijs, M.[2022], Reprint 2022, De Gruyter
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4
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5von: Adams, E[2022], Reprint 2021, De Gruyter
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6von: Aksel, N.2022, Reprint 2021, De Gruyter