@misc{spychala_prompt_gammaray_1987, 
author={Spychala, M.,Michaelis, W.,Fanger, H.-U.},
title={Prompt gamma-ray neutron activation analysis for multi-element determination in sediment samples},
year={1987},
howpublished = {journal article,GKSS report},
note = {Online available at: \url{} (DOI). Spychala, M.; Michaelis, W.; Fanger, H.: Prompt gamma-ray neutron activation analysis for multi-element determination in sediment samples. Journal of Radioanalytical and Nuclear Chemistry. 1987. vol. 112, 435-452.}}