@conference{7544,
  author = {J. Harrison and Judah Levine and C. Meertens},
  title = {Design of a Deep Borehole Tiltmeter},
  year = {1983},
  publisher = {Lubrecht \& Cramer Limited},
  address = {New York City},
  isbn = {3510651138, 9783510651139},
  url = {http://tf.boulder.nist.gov/general/pdf/587.pdf},
  note = {JILA Pub. 2326},
}