@inbook{momi-verkasalo-2009b,
  author = {Hannu Verkasalo},
  title = {Analyzing the Stickiness of Mobile Service Usage},
  booktitle = {Promoting New Telecom Infrastructures: Markets, Policies and Pricing},
  editor = {Morten Falch and Jan Markendahl},
  publisher = {Edward Elgar},
  volume = {},
  number = {},
  pages = {},
  country = {},
  year = {2009},
}