@incollection{AudretschKeilbachLehmann2005,
  author    = {David B. Audretsch and Max C. Keilbach and Erik E. Lehmann},
  title     = {The knowledge spillover theory of entrepreneurship and technological diffusion},
  booktitle = {University entrepreneurship and technology transfer: process, design, and intellectual property},
  editor    = {Gary D. Libecap},
  isbn      = {0-7623-1230-0},
  url       = {https://www.emeraldinsight.com/doi/full/10.1016/S1048-4736\%2805\%2916003-2},
  year      = {2005},
}