Jean Druel and Almog Kasher, “‘Though this be madness, yet there is method in’t’: The mamnūʿ min al-ṣarf (diptotes) in Arabic grammatical tradition” in Arabica 66 (2019), pages 98‒136.
The Kitāb Sībawayh of ʾAbū al-Ḥasan ʾAḥmad b. Naṣr
Jean Druel, “The Kitāb Sībawayh of ʾAbū al-Ḥasan ʾAḥmad b. Naṣr: A non-Sīrāfian recension of the Kitāb”, in Zeitschrift für arabische Linguistik 71 (2020), pages