@article{195549,
      recid = {195549},
      author = {Hanson, David R.},
      title = {Multiple-channel trigger circuit for noise discrimination  in ultrasonic acoustic emission studies /},
      publisher = {U.S. Dept. of the Interior, Bureau of Mines,},
      address = {Washington, DC :},
      pages = {10 p. :},
      year = {1995},
      url = {http://library.usi.edu/record/195549},
}