@article{1365230,
      recid = {1365230},
      author = {Pincus, Joel D., and Zhou, Shaojie,},
      title = {Principal currents for a pair of unitary operators /},
      pages = {1 online resource (114 pages).},
      note = {"May 1994, Volume 109, Number 522 (second of 5 numbers)."},
      url = {http://library.usi.edu/record/1365230},
}