1. Thornton, W.E., et al., Specimen Mass Measurement, Ch. 8, NASA Tech. report. N74-11867, (1974).
2. Thornton, W.E. and Ord, J. Physiological Mass Measurements in Skylab, pp.175-182, Biomedicl Results From Skylab. R. S. Johnson and L. F Dietlein, Eds. 1997, NASA SP-377 USGPO, USA.
3. Sarychev, V.A., et al., Device for mass measurement under zero gravity conditions, Acta Astronautica, Vol. 7. pp.719-730, (1980).
4. Ono, T. et al., Mass-Measurement Under Weightless Conditions, pp.186-191.
5. Smith, D. and Kaufman, K., Space Liner Acceleration Mass Measurement Device for the Human Research Facility (Hrf, SAE Translations), pp.589-609, (1998).