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Literatur

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Herrn ProfessorDr. Emanuel Sperner zum 70. Geburtstag gewidmet

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Stephanidis, N.K. Über spezielle Geradenkongruenzen. Abh.Math.Semin.Univ.Hambg. 45, 156–164 (1976). https://doi.org/10.1007/BF02992912

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  • DOI: https://doi.org/10.1007/BF02992912

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