GWR Instruments, 1985, Superconducting gravity meter model TT70 operating manual, GWR Instruments, San Diego, CA, USA.
Hinderer, J., D. Crossley and R.J. Warburton, 2015, Superconducting gravimetry, in “Treatise of Geophysics”, 2nd edition, edited by G. Schubert, 59-115.
Imanishi, Y., T. Sato and K. Asari, 1996, Measurement of mechanical responses of superconducting gravimeters, J. Geod. Soc. Japan, 42, 115-117. doi:10.11366/sokuchi1954.42.115.
Imanishi, Y., K. Nawa, Y. Tamura and H. Ikeda, 2018, Effects of horizontal acceleration on the superconducting gravimeter CT #036 at Ishigakijima, Japan, Earth Planets Space, 70, 9. doi:10.1186/s40623-018-0777-9.