@article{AudretschLehmann2005,
  author    = {David B. Audretsch and Erik E. Lehmann},
  title     = {Do university policies make a difference?},
  journal   = {Research Policy},
  volume    = {34},
  number    = {3},
  pages     = {343 -- 347},
  doi       = {10.1016/j.respol.2005.01.006},
  year      = {2005},
}