Documentation: ECE/TRANS/WP.29/GRPE/2009/8, ECE/TRANS/WP.29/GRPE/2010/11, ECE/TRANS/WP.29/GRPE/2010/12, Informal document No. GRPE-60-06
Documents: ECE/TRANS/WP.29/GRPE/2009/8, ECE/TRANS/WP.29/GRPE/2010/11, ECE/TRANS/WP.29/GRPE/2010/12; et GRPE/60/06.