@misc{leonhard_application_of_2003, 
author={Leonhard, P.,Proefrock, D.,Prange, A.},
title={Application of ICP-MS in a research centre - examples and experiences},
year={2003},
howpublished = {conference lecture (invited): Utrecht (NL); 26.11.2003},
note = {Online available at: \url{} (DOI). Leonhard, P.; Proefrock, D.; Prange, A.: Application of ICP-MS in a research centre - examples and experiences. ICP-MS Usermeeting Benelux. Utrecht (NL), 2003.}}