Realization of a timescale with an accurate optical lattice clock Grebing, Christian ; Al-Masoudi, Ali ; Dörscher, Sören ; Häfner, Sebastian ; Gerginov, Vladislav ; Weyers, Stefan ; Lipphardt, Burghard ; Riehle, Fritz ; Sterr, Uwe ; Lisdat, Christian Abstract Publication: Optica Pub Date: June 2016 DOI: 10.1364/OPTICA.3.000563 Bibcode: 2016Optic...3..563G