 It employs dead keys to type accented characters like “é”, and the AltGr key to access characters in the third level (e.g.“[”, “]”, “@”, the euro sign “€”, or the micro- “µ”).The “T2” layout as specified in the 2012 edition of the German standard also uses the group selection to access special characters like the long s, or foreign characters like “Æ” or “Ə”.