Erasmus Student looking for 6 month accommodation

Erasmus Student looking for 6 month accommodation in Düsseldorf whilst studying at the university there. Looking for private room but willing to share the whole flat with other students, preferably in a similar Erasmus/Year Abroad situation. Not looking for anything particularly expensive, basic digs with a kitchen and washing machine is my main priority in the search for accommodation and somewhere relatively close to the city centre or at least a train station.