?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Francisco+Jos%C3%A9&rft.aulast=Navarro+Valero&rft.au=Navarro+Valero%2C+Francisco+Jos%C3%A9&rft.isbn=978-90-393-4854-3&rft.title=Internal+Structure+of+Ariebreen%2C+Spitsbergen%2C+from+radio-echo+sounding+data&rft.btitle=The+Dynamics+and+Mass+Budget+of+Arctic+Glaciers.+Book+of+Abstracts+of+Workshop+and+GLACIODYN+(IPY)+Meeting.+IASC+Working+Group+on+Arctic+Glaciology.&rft.date=29+January+2008&rft.genre=proceeding