1.
Meteorological measurements in the upper air at station Soesterberg, 1913-02-12 to 1918-03-09, ERA-CLIM ID 5007B
Meteorological measurements in the upper air at station Duin Dal, 1914-02-01 to 1921-12-27, ERA-CLIM ID 5016B
Meteorological measurements in the upper air at station Soesterberg, 1911-06-09 to 1920-06-14, ERA-CLIM ID 5003B
Meteorological measurements in the upper air at station Soesterberg, 1913-09-15 to 1920-12-23, ERA-CLIM ID 5012B
