The origins of bone tool technologies : "Retouching the Palaeolithic: Becoming Human and the Origins of Bone Tool Technology", Conference at Schloss Herrenhausen in Hannover, Germany, 21.- 23. October 2015 - García Moreno, Alejandro; Gaudzinski-Windheuser, Sabine; Hutson, Jarod M.; Noack, Elisabeth S.; Turner, Elaine; Villaluenga, Aritza (Propylaeum, 2018)