Increasing stable time-step sizes of the free-surface problem arising in ice-sheet simulations. - André Löfgren; Josefin Ahlkrona; Christian Helanow (J. Comput. Phys. X, 2022)

Theoretical results on a block preconditioner used in ice-sheet modeling: eigenvalue bounds for singular power-law fluids. - Christian Helanow; Josefin Ahlkrona (CoRR, 2023)

A potential energy conserving finite element method for turbulent variable density flow: Application to glacier-fjord circulation. - Lukas Lundgren; Christian Helanow; Jonathan Wiskandt; Inga Monika Koszalka; Josefin Ahlkrona (J. Comput. Phys., 2025)