On the representation of cyclotomic polynomials as sums of squares
On the representation of integers by binary forms
On the representation of numbers by positive binary diagonal quadratic forms.
On the representation of the integer by positive quadratic forms with square-free variables
On the Values of the Dedekind Sum.
On Trace Forms of Algebraic Number Fields.
On trace forms of hilbertian fields.
One-class genera of positive quadratic forms in at least five variables
One-class genera of positive quaternary quadratic forms
Orderings of Higher Level and Semilocal Rings.