Efficient calculation of the Coulomb matrix and its expansion around k=0 within the FLAPW method. - Christoph Friedrich; Arno Schindlmayr; Stefan Blügel (Comput. Phys. Commun., 2009)

Elimination of the linearization error and improved basis-set convergence within the FLAPW method. - Gregor Michalicek; Markus Betzinger; Christoph Friedrich; Stefan Blügel (Comput. Phys. Commun., 2013)

A multi-talented datacube: integrating, processing and presenting big geodata for the agricultural end user. - Christoph Friedrich; Johannes Löw; Insa Otte; Steven Hill; Sebastian Förtsch; Jakob Schwalb-Willmann; Ursula Gessner; Christoph Schierghofer; Sina C. Truckenbrodt; Eric Schonert; Thomas Piernicke; Denise Assmann; et al. (GIL, 2024)