@misc{coin-verkasalo-2007d,
  author = {Hannu Verkasalo},
  year = {2007},
  title = {Finnish Smartphone Study 2006 - Results},
  note = {project report},
  url = {http://www.netlab.tkk.fi/~hverkasa/verkasalo-smartphonestudy-coin-2006-slides.pdf},
}