XU Shaokui, LU Yuanzhong, GUO Lucan, CHEN Shanpei, XU Zhonghuai, XIAO Chengye, FENG Yijun (许绍燮、陆远忠、郭履灿、陈培善、许忠淮、肖承邺、冯义钧) (1999-04-26). "Specifications on Seismic Magnitudes (地震震级的规定)" (dalam bahasa Chinese). General Administration of Quality Supervision, Inspection, and Quarantine of P.R.C. Dicapai pada 2008-09-14.CS1 maint: multiple names: authors list (link) CS1 maint: unrecognized language (link)