@techreport{aspelien_assimilation_of_2005, 
author={Aspelien, T. and Weisse, R.},
title={Assimilation of Sea Level Observations for Multi-Decadal Regional Ocean Model Simulations for the North Sea},
year={2005},
type = {GKSS-Bericht: Report;},
note = {Aspelien, T.; Weisse, R.: Assimilation of Sea Level Observations for Multi-Decadal Regional Ocean Model Simulations for the North Sea. 2005.}}