On the complexity of matrix reduction over finite fields. - Daniel Andrén; Lars Hellström; Klas Markström (Adv. Appl. Math., 2007)

Fast multiplication of matrices over a finitely generated semiring. - Daniel Andrén; Lars Hellström; Klas Markström (Inf. Process. Lett., 2008)

The bivariate Ising polynomial of a graph. - Daniel Andrén; Klas Markström (Discret. Appl. Math., 2009)