@conference{7639,
  author = {Judah Levine and J. Harrison and C. Meertens},
  title = {Performance of a Deep Borehole Tiltmeter},
  year = {1983},
  publisher = {Lubrecht \& Cramer Limited},
  address = {New York, New York},
  isbn = {3510651138, 9783510651139},
  note = {JILA Pub. 2327},
}