@INPROCEEDINGS{SchwartzBH05,
  author    = {Tim Schwartz and Boris Brandherm and Dominik Heckmann},
  title     = {Calculation of the User-Direction in an 
               Always Best Positioned Mobile Localization System},
  booktitle = {Proceedings of the International Workshop on 
               Artificial Intelligence in Mobile Systems (AIMS)},
  year      = {2005},
  address   = {Salzburg, Austria},
  month     = {September}
}