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Mathematica Pannonica
Author:
Walter Wenzel
. Duality theory for finite and infinite matroids with coefficients . Adv. Math . 59 ( 1986 ), 97 – 123 . [7] Dress , A. W. M. , and Wenzel , W . Geometric algebra for combinatorial geometries . Adv. Math . 77 ( 1989 ), 1 – 36 . [8] Dress , A