@doctoralThesis{Wissenbach_2012,
title={Development of the first metabolite-based LC-MSⁿ urine drug screening procedure},
author={Wissenbach, Dirk K.},
doi={http://dx.doi.org/10.22028/D291-22781},
subtitle={Entwicklung des ersten Metaboliten-basierten LC-MSⁿ Medikamenten Screening Verfahrens für Urin},
year={2012}
}