@inproceedings{coin-verkasalo-2007b,
  title = {Contextual Usage-Level Analysis of Mobile Services},
  author = {Hannu Verkasalo},
  booktitle = {The 4th Annual International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MOBIQUITOUS 2007). August 6-10, 2007 - Philadelphia, PA, USA},
  year = {2007},
  month = {Aug.},
  url = {},
}