@inproceedings{steinicke2006doespresence,
 author = {Steinicke F, Bruder G, Hinrichs K, Steed A, Gerlach AL},
 title = {Does a Gradual Transition to the Virtual World increase Presence?},
 year = {2006},
 booktitle = {IEEE Virtual Reality 2009: Lafayette, Louisiana, USA March 14-18, 2009: Proceedings},
}