Integral Systems of Imprimitivity.
Rings in which no Fixed Power of Ideal Classes Becomes Invertible. Note to the Preceeding Paper of Dade, Taussky and Zassenhaus.
Degrees of Modular Irreducible Representations of p-Solvable Groups.
Products of Orders of Centralizers.
On the theory of orders, in particular on the semigroup of ideal classes and genera of an order in an algebraic number field.
Divisors of Recurrent Sequences.
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