@article{echtler2009sudoku,
  author      = {Echtler, Florian and Nestler, Simon and Dippon, Andreas and Klinker, Gudrun},
  title       = "Supporting Casual Interactions between Board Games on Public Tabletop Displays and Mobile Devices",
  journal     = {Personal and Ubiquitous Computing, Special Issue on Public and Private Displays},
  month       = {oct},
  year        = {2009},
  pp          = {609--617},
  doi         = {10.1007/s00779-009-0246-3},
  keywords    = {multi-touch, collaboration, mobile devices, entertainment}
}