Bilzingsleben site formation processes. Geoarchaeological investigations of a Middle Pleistocene deposit. Preliminary results of the 2003-2005 excavations - Beck, Marcus 19XX-; Gaupp, Reinhard 1948-; Kamradt, Ivonne 1975-; Liebermann, Carmen 1973-; Pasda, Clemens 1964- (2007)