Alternative approaches to electrochromic devices for optical applicationsAlternative approaches to electrochromic devices for optical applications Σύντομη Δημοσίευση σε Συνέδριο Conference Short Paper 2015-11-121999enhttp://creativecommons.org/licenses/by/4.0/54212th International Conference on Solid State Ionics Papaefthimiou Spiros Παπαευθυμιου Σπυριδων P. Yianoulis S. Papaefthimiou