@techreport{riku-08,
  author = {Riku Lääkkölä},
  title = {Percolation threshold in the Poisson Boolean continuum model},
  institution = {Helsinki University of Technology},
  month = {Aug.},
  year = {2008},
  note = {Special assignment},
  url = {http://www.netlab.tkk.fi/tutkimus/abi/publ/percolation_final.pdf},
}