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1von: Beeger, H[2022], Reprint 2021, De Gruyter
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2von: Aleksandrov, L. N.[2022], Reprint 2022, De Gruyter
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3von: Ainger, F. W[2022], Reprint 2021, De Gruyter
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4von: Ageev, V[2022], Reprint 2021, De Gruyter