1. Intercomparison of flatness measurements of an optical flat at apertures of up to 150 mm in diameter. (20th January 2017) Authors: Quabis, S; Schulz, M; Ehret, G; Asar, M; Balling, P; Křen, P; Bergmans, R H; Küng, A; Lassila, A; Putland, D; Williams, D; Pirée, H; Prieto, E; Pérez, M; Svedova, L; Ramotowski, Z; Vannoni, M; Hungwe, F; Kang, Y Journal: Metrologia Issue: Volume 54:Number 1(2017:Feb.) Page Start: 85 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗