https://old.e-afe.fr/produit/proceedings-of-the-2nd-cie-expert-symposium-on-led-measurement-standard-methods-for-specifying-and-measuring-led-and-led-cluster-characteristics/ Association Française de l'éclairage Fri, 22 May 2015 10:39:52 +0000 hourly 1 https://wordpress.org/?v=6.7.2