The two special fields of Geography, “Wirt­schaftsgeographie, insbesondere Verkehr und Logistik” (Economic Geography specialising in Transport and Logistics under Professor Rudolf Juchelka) and “Landeskunde von Altindustrie­ländern” (Applied Geography of Established Industrialised Countries under Professor Hans-Werner Wehling), are part of the academic core area of Urban Systems. They are concerned with central research topics of urban geography, e. g. metropolis research, the interplay between urban development and sustainability, urban structures of the retail industry, and the concept of the “European City”.