Algebraic dependence of commuting differential operators. - Lars Hellström (Discret. Math., 2001)

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)

Quantifiers and n-ary binders: an OpenMath standard enhancement proposal. - Lars Hellström (CICM Workshops, 2013)

Literate sources for content dictionaries. - Lars Hellström (CICM Workshops, 2013)

The eval Symbol for Axiomatising Variadic Functions. - Lars Hellström (CICM Workshops, 2014)

Literate Sources for Content Dictionaries: A Progress Report. - Lars Hellström (CICM Workshops, 2014)

Network Rewriting II: Bi- and Hopf Algebras. - Lars Hellström (RTA, 2015)

A Content Dictionary for In-Object Comments. - Lars Hellström (ICMS, 2020)