Mei, Tsulin. 1980. Sìshēng biéyì zhōng de shíjiān céngcì \zh{四声别义中的时间层次} [{C}hronological strata in tonal alternations]. Zhōngguó yǔwén \zh{中国语文}. 427-443.
@article{jacquesestimative-mei80sishengbieyi,
author = {Mei, Tsulin},
journal = {Zhōngguó yǔwén \zh{中国语文}},
number = {6},
pages = {427-443},
title = {Sìshēng biéyì zhōng de shíjiān céngcì \zh{四声别义中的时间层次} [{C}hronological strata in tonal alternations]},
year = {1980}
}