seconde (unité)
1968 / Astronomical Measures of Time / D. H. Sadler / Quarterly Journal of the Royal Astronomical Society 9 (1968) p. 281 [lien]
2001 / [Reference Frame] On the Matter of the Meter / Daniel Kleppner / Physics Today 54 (2001) p. 11 [doi]
2006 / [Reference Frame] Time Too Good to Be True / Daniel Kleppner / Physics Today 59 (2006) p. 10 [doi]