@conference{IntVal,
  title = "Interactional Validity: Assessing technologies to support embodied activities",
  author = "Paul Luff‚ Marina Jirotka‚ Naomi Yamashita and Hideaki Kuzuoka and Grace de la Flor and Christian Heath",
  year = "2011",
  booktitle = "Workshop  on  Embodied  Interaction:  Theory and  Practice in HCI, 29th ACM Conference on Human Factors in Computing Systems,
CHI'11",
  journal = "Workshop  on  Embodied  Interaction:  Theory  and  Practice in HCI, 29th ACM Conference on Human Factors in Computing Systems,
CHI'11",
  url = "http://www.antle.iat.sfu.ca/chi2011_EmbodiedWorkshop/Papers/PaulLuff_CHI11EIWkshp_Interactional%20Validity.pdf",
}