@InProceedings{CAS99,
  author = 	 {P. Hastreiter and C. Rezk--Salama and B. Tomandl and 
                  K. Eberhardt and T. Ertl},
  title = 	 {{Comparing the Quality of Interactive Volume  Rendering
                   Methods in Neuroradiology}},
  booktitle = 	 {Worksh. on Rapid Proto. i.\ Med. and Comp.-Assis. Surg. 
                  (CAS'99)},
  editor =	 {W. Kalender},
  year =	 1999,
  address =	 {Univ. of Erlangen, Germany}
}