语言科学
“（如）X许”比拟式与“许”的助词化
冯赫
The Diachronic Study of the Likening Structure (ru)(如) X xu（许) and the Development of the Particle xu
Feng He
语言科学 . 2013, (4): 403 -408 .  DOI: 10.7509/j.linsci.201305.027885