@article{23009,
      note = {Appendices : 1. World Intellectual Property Organization  (WIPO); 2. International agreed numbers for the  identification of data [INID]; 3. Patent of document codes;  4. Start dates for Derwent country coverage; 5. Derwent  coverage of Japanese patents by International Patent  Classification (IPC); 6. The Derwent classification for all  technologies;.},
      url = {http://tind.wipo.int/record/23009},
      title = {Global patent sources : an overview of international  patents.},
      recid = {23009},
      pages = {240 pages :},
}