Impurity Analysis and Microstructure Along the Climatic Transition From MIS 6 Into 5e in the EDML Ice Core Using Cryo-Raman Microscopy oleh Jan Eichler, Jan Eichler, Christian Weikusat, Anna Wegner, Birthe Twarloh, Melanie Behrens, Hubertus Fischer, Maria Hörhold, Daniela Jansen, Sepp Kipfstuhl, Urs Ruth, Frank Wilhelms, Frank Wilhelms, Ilka Weikusat, Ilka Weikusat