@article{227852,
      recid = {227852},
      author = {Lahr, John C.},
      title = {HYPOELLIPSE a computer program for determining local  earthquake hypocentral parameters, magnitude, and  first-motion pattern, Y2K compliant version / [microform]  :},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey,},
      address = {[Denver, CO] :},
      pages = {1 v. (various pagings) :},
      year = {1999},
      note = {"1999 Version 1.0."},
      url = {http://library.usi.edu/record/227852},
}