@InCollection{Lukierski:2003,
  author    = "J. Lukierski and A. Nowicki",
  title     = "Four classes of modified relativistic symmetry transformations",
  pages     = "287--291",
  year      = "2003",
  booktitle = "GROUP 24 : physical and mathematical aspects of symmetries : proceedings of the Twenty-Fourth International Colloquium on Group Theoretical Methods in Physics, ISBN: 0750309334",
  publisher = "Institute of Physics Publishing",
  address   = "Bristol",
  series    = "Institute of Physics Conference Series : 173",
}