@inproceedings{del-ochv-03
, author =      "Erik D. Demaine and Jeff Erickson and Stefan Langerman"
, title =       "On the Complexity of Halfspace Volume Queries"
, booktitle =   "Proc. 15th Canad. Conf. Comput. Geom."
, site =        "Halifax"
, year =        2003
, pages =       "159--160"
}