语言科学
  论否定副词“没（有）”与“了2”共现问题
朱庆祥
A Study on the Co-occurrence of the Negative Adverb méi (yǒu) (没(有)) and le2(了2)
Zhu Qingxiang
语言科学 . 2012, (1): 37 -51 .