Juan Yuan, among others, determined in his book 'Northern stelae and Southern copybooks,' based on the above theory, that northern stelae, or monuments engraved in Northern Dynasty in the period of the Northern and Southern Dynasties (China), compared favorably to nanjo, or hojo made in Southern Dynasty in the same period, which gained support from Bao shu-cheng and many other scholars.
なかんずく阮元は、南北朝時代(中国)に北朝で彫られた碑である北碑と南朝の法帖・南帖を比較して「北碑南帖論」を著し、先述の論理から北碑を南帖よりも優れたものとして断じ、包世臣など多くの学者がこれに賛同した。