@ARTICLE{Gellersen2004,
  author = {Gellersen, H.-W. and Kortuem, G. and Beigl, M. and Schmidt, A.},
  title = {Physical prototyping with Smart-Its},
  journal = {IEEE Pervasive Computing Magazine, Vol. 04, 1536-1268},
  year = {2004},
  pages = {10-18},
  ibrauthors = {beigl},
  ibrgroups = {dus},
  url = {http://www.teco.edu/~michael/publication/ieee_pervasive_2004.pdf}
}