"Variability in the Neolithic arrowheads of Central Anatolia (Typological, Technological and Chronological Aspect)” Beyond Tools, Redefining the PPN Lithic Assemblages of the Levant (3 rd Workshop on Chipped Lithic Industries November 1-4, 1998), Haz. I. Caneva, C. Lemorini, D. Zampetti, P. Biagi, ex oriente, Berlin