@misc{dahms_final_positivity_1993, 
author={Dahms, M.},
title={Final positivity correction in the harmonic method},
year={1993},
howpublished = {journal article,GKSS report},
note = {Online available at: \url{} (DOI). Dahms, M.: Final positivity correction in the harmonic method. Textures and Microstructures. 1993. vol. 21, 61-69.}}