@misc{proper2001information,
   author = {Proper, Henderik A.},
   howpublished = {Presented at {HCI} International '2001 (the 9th International Conference on Human-Computer Interaction), {New} Orleans, {Louisiana}, {USA}},
   month = {August},
   title = {Information Coverage -- {Incrementally} Satisfying a Searcher's Information Need},
   year = {2001},
}