辽代汉语与河北方言语音层次的形成
傅林
Chinese in Liao Dynasty and the Formation of the Phonological Strata of Hebei Dialects
FU Lin
河北大学学报(哲学社会科学版) . 2017, (4): 31 -41 .  DOI: 10.3969/j.issn.1005-6378.2017.04.005