New geological research at the middle paleolithic locality of Wallertheim in Rheinhessen - Conard, Nicholas John 1961-; Preuß, Johann 1620-1696; Langohr, Roger 19XX-; Haesaerts, Paul 1942-; Kolfschoten, Thijs van 1952-; Becze-Deak, Judit; Rebholz, Armin (1995)