1. Amstrup B. 2000. ‘EUCOS observing systems experiments with the DMI‐HIRLAM optimum interpolation analysis and forecasting system’. DMI Scientific Report 00 − 19, Danish Meteorological Institute: Copenhagen, Denmark. http://www.dmi.dk/dmi/sr00‐19.pdf.
2. Amstrup B. 2001. ‘Impact of ATOVS AMSU‐A radiance data in the DMI‐HIRLAM 3D‐Var analysis and forecasting system’. DMI Scientific Report 01 − 06, Danish Meteorological Institute: Copenhagen, Denmark.
3. ‘Impact of NOAA15 and NOAA16 ATOVS AMSU‐A radiance data in the DMI‐HIRLAM 3D‐VAR data assimilation system—November and December 2003’;Amstrup;HIRLAM Newsletter,2004
4. Amstrup B. 2006a. ‘EUCOS space/terrestrial OSE study using the DMI‐HIRLAM 3D‐VAR data assimilation system. Part I: A winter period’. DMI Scientific Report 06 − 07, Danish Meteorological Institute: Copenhagen, Denmark. http://www.dmi.dk/dmi/sr06‐07.pdf..
5. Amstrup B. 2006b. ‘EUCOS space/terrestrial OSE study using the DMI‐HIRLAM 3D‐VAR data assimilation system. Part II: A summer period’. DMI Scientific Report 06 − 08, Danish Meteorological Institute: Copenhagen, Denmark. http://www.dmi.dk/dmi/sr06‐08.pdf..