@book{BoonzaaijerHelmigBergerhausenetal.2010,
  author    = {Karel Boonzaaijer and Ilka Helmig and Johannes Bergerhausen and Matthieu Beudaert},
  title     = {Vision - space for imagination},
  isbn      = {978-90-5856-357-6},
  year      = {2010},
}