Representing effects of micro-topography on runoff generation and sub-surface flow patterns by using superficial rill/depression storage height variations. - Sven Frei; Jan H. Fleckenstein (Environ. Model. Softw., 2014)

Analytical modeling of hyporheic flow for in-stream bedforms: Perturbation method and implementation. - Sven Frei; Morvarid Azizian; Stanley B. Grant; Vitaly A. Zlotnik; Daniel Toundykov (Environ. Model. Softw., 2019)