König-Langlo, Gert (2009): Radiosonde PS73/30199 during POLARSTERN cruise ANT-XXV/3 on 2009-02-09 11:00h. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.717041, In: König-Langlo, G (2010): Upper air soundings during POLARSTERN cruise ANT-XXV/3. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.849126