Ekologia historyczna miasta : uwarunkowania środowiskowe i podstawy gospodarcze wczesnomiejskiego zespołu osadniczego na Ostrowie Tumskim w Poznaniu

Environmental conditions, animal and plant economy of the Early Medieval stronghold complex at Ostrów Tumski - and island on Warta river - have been discussed. The stronghold complex with the nearby open settlements, its role as a center of administration, church, and trade center have been considered as the early urban type of settlement. It finally developed into main economic and cultural center of western Poland - Poznań city.