THE METALLURGY OF THE PASTORAL SOCIETIES IN THE LIGHT OF COPPER AND BRONZE PROCESSING IN THE NORTHERN PONTIC STEPPE - FOREST-STEPPE ZONE:4500-2350 BC - Klochko, Viktor (Uniwersytet im. Adama Mickiewicza (Poznań). Instytut Prahistorii, Uniwersytet im. Adama Mickiewicza (Poznań). Instytut Wschodni, 1994)