@misc{wernecke_first_measurements_1994, 
author={Wernecke, G.,Floeser, G.,Korn, S.,Weitkamp, C.,Michaelis, W.},
title={First measurements of the methane concentration in the North Sea with a new in-situ device},
year={1994},
howpublished = {journal article,GKSS report},
note = {Online available at: \url{} (DOI). Wernecke, G.; Floeser, G.; Korn, S.; Weitkamp, C.; Michaelis, W.: First measurements of the methane concentration in the North Sea with a new in-situ device. Bulletin of the Geological Society of Denmark. 1994. vol. 41, 5-11.}}