"GST." YourDictionary, n.d. Web. 18 May 2018. <http://www.yourdictionary.com/gst>.
GST. (n.d.). Retrieved May 18th, 2018, from http://www.yourdictionary.com/gst
(GeSbTe - Germanium-Antimony-Tellurium) The chemical compound used for the recording layer in rewritable optical discs and the memory cell in phase change memory (PCM). See chalcogenide glass, phase change disc and phase change memory.