looking for accomodation in Graz, for a family (wife+husband+child (10 months)

Hi, I need to find a small flat in Graz for about two months in the summer (starting from the middle of July) for me, my husband and my child (10-month old). We are looking for something small with one bedroom, living room + kitchen and bathroom. I will have a training in the laboratory of the Institute of Pathology of the Medical University of Graz. we are mature and reasonable Polish people from Warsaw:) no pets, no smoking