Home > Outreach > Press Articles > De tijd vliegt… de atomaire seconde bestaat al 50 jaar |
Bertrand, Bruno ; Defraigne, Pascale ; Verhasselt, Katrijn
published in Helaal, 63 issue 1, pp. 2-7 (2018)
Links: link
The record appears in these collections:
Royal Observatory of Belgium > Reference Systems & Planetology
Outreach > Press Articles