@article{418331,
      note = {Includes index.},
      author = {Xu, Jiagu.},
      url = {http://library.usi.edu/record/418331},
      title = {Lecture notes on Mathematical Olympiad courses for junior  section, volume 1 / [electronic resource] :},
      publisher = {World Scientific,},
      recid = {418331},
      pages = {xii, 170 p. :},
      address = {Singapore :},
      year = {2010},
}