1. A. Bauch, Zeitmessung in der PTB. PTB-Mitteilungen 122(1), 23–36 (2012)
2. H. Dambeck, Umstellung im Juni: Schaltsekunde bedroht Computersysteme (2015). Spiegel Online.
http://www.spiegel.de/wissenschaft/weltall/weltzeit-schaltsekunde-bedroht-weltweit-it-systeme-a-1011914.html
. Accessed 22 July 2016
3. W.R. Dick, The IERS, the Leap Second, and the Public, in Decoupling of Civil Timekeeping from Earth Rotation. Proceedings of a Colloquium Exploring Implications of Redefining Coordinated Universal Time (UTC), held October 5–7, 2011 at Analytical Graphics, Inc., Exton, Pennsylvania, ed. by J.H. Seago, R.L. Seaman, S.L. Allen. American Astronautical Society, Science and Technology Series, vol. 113 (Univelt, San Diego, CA, 2011), pp. 117–122
4. W.R. Dick, B. Richter, The International Earth Rotation and Reference Systems Service (IERS), in Organizations and Strategies in Astronomy, vol. 5, ed. by A. Heck. Astrophysics and Space Science Library, vol. 310 (Kluwer Academic Publishers, Dordrecht, Boston, London, 2004), pp. 159–168
5. ITU-R, Recommendation ITU-R TF.460-6: Standard-Frequency and Time-Signal Emissions (2002).
https://www.itu.int/rec/R-REC-TF.460-6-200202-I/en
. Accessed 4 Aug 2016