{"id":"003006669","type":"book","title":"Einführung in das Verständniss der geologisch-agronomischen Specialkarten des Norddeutschen Flachlandes","publisher":"Preuss. Geologische Landesanstalt","publisher-place":"Berlin","author":[{"family":"Keilhack","given":"Konrad 1858-1944"}],"issued":{"raw":"1901"}}