On Signatures of Green Functors.
A combinatorial theory of Grünbaum's new regular polyhedra, Part II: Complete enumeration.
A combinatorial theory of Grünbaum's new regular polyhedra, Part I: Grünbaum's new regular polyhedra and their automorphism group.
On Prime Ideals in Representation Rings.
Gated sets in metric spaces.
Zur Parametrisierung von Untergruppen freier Gruppen
Still another proof of the existence of Sylow--subgroups.
On lifting prime ideals.
A simple, (almost) non-inductive proof for the existence of composite fields and algebraic closures.
Valuated matroids---a new look at the greedy algorithm.
An application of Burnside rings in elementary finite group theory.
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