1. Advances in the accuracy, stability, and reliability of the PTB primary fountain clocks. (19th October 2018) Authors: Weyers, S; Gerginov, V; Kazda, M; Rahm, J; Lipphardt, B; Dobrev, G; Gibble, K Journal: Metrologia Issue: Volume 55:Number 6(2018:Dec.) Page Start: 789 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗