TY - GEN AU - Walker,Alan ED - International Senkenberg conference, 4: 100 years of Pithecanthropus - The home erectus problem TI - Early homo from 1.8-1.5 million year deposits at Lake Turkana, Kenya T2 - Courier Forschungs Institut Senckenberg, 171 SN - 3929907100 SN - 03414116 KW - Paléoanthropologie KW - Hominidés KW - Kenya N1 - bibliogr. p. 172-173 ER -