ECE/TRANS/WP.29/GRSP/46, paras. 19 - 20, ECE/TRANS/WP.29/GRSP/2010/8 ECE/TRANS/WP.29/GRSP/2010/9, ECE/TRANS/WP.29/GRSP/2010/24 (ECE/TRANS/WP.29/GRSP/2008/22), (ECE/TRANS/WP.29/GRSP/2008/23)
Documentation: ECE/TRANS/WP.29/GRSP/46, par. 19 et 20; ECE/TRANS/WP.29/GRSP/2010/8, ECE/TRANS/WP.29/GRSP/2010/9, ECE/TRANS/WP.29/GRSP/2010/24; ECE/TRANS/WP.29/GRSP/2008/22, ECE/TRANS/WP.29/GRSP/2008/23; GRSP-45-13; GRSP-46-14.