23 old student looking for a room/apartment and roomates in Katowice

I am 23 old student. For the period August - February I will be an Erasmus trainee in Katowice. I am looking for a room or apartment with other students in Katowice. I was Erasmus in Gliwice two years ago so I am used to live in a dorm with other Erasmus. I don't smoke, I like to cook and my only condition is to keep clean the common parts.