@InProceedings{BaSeSo-DML08-pdf,
  author =       {Josef Baker and Alan P. Sexton and Volker Sorge},
  title =        {Extracting Precise Data on the Mathematical Content of
                  PDF Documents},
  booktitle =    {Towards a Digital Mathematics Library (DML)},
  year =         2008,
  address =      {Birmingham, UK},
  month =        {July 27},
  publisher =    {Masaryk University Press},
  note =         {ISBN 978-80-210-4658-0},
  url =          {http://dml.cz/dmlcz/702535},
  pdf =          {http://www.cs.bham.ac.uk/%7Eaps/research/papers/pdf/BaSeSo-DML08-ExtractingPreciseDataOnMathContentOfPDFDocs.pdf},
}