http://sankei.jp.msn.com/life/welfare/100125/wlf1001250743000-n1.htm
【中国：北京、自転車利用を拡大】
http://japanese.cri.cn/881/2010/01/25/146s153701.htm
【中国北京市が自転車利用促進に本腰（英文）】
http://www.guardian.co.uk/world/2010/jan/24/beijing-cycling-capital-plans
http://in.reuters.com/article/worldNews/idINIndia-45640620100124
