@article{19525,
      note = {Price : NLG (US $ 20.00) Supplier : Nedbook, Amsterdam;  Fundamentals of pure and applied economics; vol 30 :  Economics of Technological Change section; ed. by F M  Scherer;.},
      author = {Kaufer, Erich, and Scherer, Frederic M.,},
      url = {http://tind.wipo.int/record/19525},
      title = {The economics of the patent system /},
      recid = {19525},
      pages = {viii, 66 pages :},
}