@book{noauthororeditor2009virtuelle,
  address = {Berlin; Heidelberg},
  author = {Manfred, Brill},
  interhash = {f1d82ac005eed900beb12e7d67dca61c},
  intrahash = {f180193213691703566485356cb96d9a},
  isbn = {9783540851172 3540851178 9783540851189 3540851186},
  publisher = {Springer},
  refid = {316220892},
  title = {Virtuelle Realität},
  url = {http://www.worldcat.org/search?qt=worldcat_org_all&q=9783540851172},
  year = 2009
}