Jennings, D. A., Drullinger, R. E., Evenson, K. M., Pollock, C. R., & Wells, J. S. (1987). The Continuity of the Meter: The Redefinition of the Meter and the Speed Of Visible Light. J Res Natl Bur Stand (1977).

Jennings, D. A., R. E. Drullinger, K. M. Evenson, C. R. Pollock, ja J. S. Wells. "The Continuity of the Meter: The Redefinition of the Meter and the Speed Of Visible Light." J Res Natl Bur Stand (1977) 1987.

Jennings, D. A., et al. "The Continuity of the Meter: The Redefinition of the Meter and the Speed Of Visible Light." J Res Natl Bur Stand (1977) 1987.