Accomodations
A wide range of options near the city center are available on Booking.com or Airbnb.
The bus ride from the city center (train station) to the Groenenborger campus takes ~30 minutes (bus line 21). Alternatively, bike rentals are possible through Velo. The bike ride is ~6km, or 20 minutes.
Some hotel suggestions (prices are for single occupancy):
Near the campus: Crowne Plaza Hotel (~100 Euro/night)
Near the city center: Leonardo Hotel (~90 Euro/night), De Keyser Hotel (~80 Euro/night)