ECE/TRANS/WP.29/GRSP/46, para. 41, ECE/TRANS/WP.29/GRSP/2010/14, ECE/TRANS/WP.29/GRSP/2010/19
Documentation: ECE/TRANS/WP.29/GRSP/46, par. 41; ECE/TRANS/WP.29/GRSP/2010/14, ECE/TRANS/WP.29/GRSP/2010/19.