@article{1365828,
      note = {"March 2004, Volume 168, Number 799 (end of volume)."},
      author = {Mazur, Barry, and Rubin, Karl,},
      url = {http://library.usi.edu/record/1365828},
      title = {Kolyvagin systems /},
      recid = {1365828},
      pages = {1 online resource (112 pages) :},
}