Periodicity in K -groups of certain fields Paul Arne Østvær — 2002 Rendiconti del Seminario Matematico della Università di Padova
On two-primary algebraic K-theory of quadratic number rings with focus on K₂ Marius Crainic; Paul Arne Østvær — 1999 Acta Arithmetica
Enriched functors and stable homotopy theory. Dundas, Bjørn Ian; Röndigs, Oliver; Østvær, Paul Arne — 2003 Documenta Mathematica