1. J. H. Nielsen Tempered Glass - Bolted Connections and Related Problems 2009
2. Photoelasticity of Glass
3. How to Improve Cutting Quality by Monitoring Mid-Plane Tension in a Float Glass Slice 2010
4. Float glass slice analysis www.strainoptics.com
5. Strainmatic, Product sheet, Ilis Gmbh, Erlangen, Germany www.ilis.de/en/strainmatic.html