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The mean quermassintegral of simplices circumscribed about a convex body J. R. Sangwine-Yager OriginalPaper Pages: 47 - 57
A characterization of orthogonal duality in matroid theory Joseph P. S. Kung OriginalPaper Pages: 69 - 72
A characterization of some geometries of Lie type Arjeh M. CohenBruce N. Cooperstein OriginalPaper Pages: 73 - 105