Student looking fo accomodation in Rotterdam

I am a portuguese student who is going to sudy economics in ESE between September and December.

I am looking for accomodation in Rotterdam, preferentialy close to erasmus university .

I woul like to live in a house with 3/4 students and individual rooms. I do not need I a huge room, but a good secretary and a good bed are important, not to mention an apropirate window. A little collective kitchen and living room would be perfect. A bathroom for each 2/3 persons is also important !!

In what concers prices, 600 up to 700 euros seems reasonable. However I would not discard other prices if they be adjusted to the offer.  

I study in Lisbon and live in a place close to the beach.

I am a calm and nice person who enjoys a quiet environment.

My favourite hobbies are running ( even when it is cold) swiming, and watching footbal.

I am looking forward to get to know Rotterdam.