Beschreibung:
Wheels and whirls -- Generalized transversal theory -- An extremal problem for non-separable matroids -- Representation sur un Corps des Matroides d'Ordre ? 8 -- Conditions for representability and transversality of matroids -- Sur la Dualite en Theorie des Matroides -- A characterization of transversal independence spaces -- Matroids and block designs.