Dear colleagues,

I am extremely grateful to everyone who has replied on and off the list! 

Off-list, these two works have been suggested:

The Concept of Vinn̄āṇa in Theravāda Buddhism
Author(s): O. H. de A. Wijesekera
Source:  Journal of the American Oriental Society, Vol. 84, No. 3 (Jul. - Sep., 1964), pp.
254-259
https://www.jstor.org/stable/596558

Nature Of Citta, Mano And Viññāṅa
https://www.undv.org/vesak2012/iabudoc/10ThichNhatTuFINAL.pdf

I would also like to share some further materials on vijñāna that I found helpful: 

1. In this L. Schmithausen's Lecture at Hamburg University (SoSe 2000, 12/2000), p. 5, especially fn. 3:

https://www.buddhismuskunde.uni-hamburg.de/pdf/4-publikationen/buddhismus-in-geschichte-und-gegenwart/bd4-k06schmidthausen.pdf

2. In M. Radich's The Doctrine of *Amalavijñāna in Paramārtha (499-569), and Later Authors to Approximately 800 C.E. (2008), pp. 95-97:

https://www.academia.edu/297138/_The_Doctrine_of_Amalavij%C3%B1%C4%81na_in_Param%C4%81rtha_499_569_and_Later_Authors_to_Approximately_800_C_E_

3. In this Ph.D. thesis with the captivating title Eine Philologie der Denkformen für Indien und Europa: Sanskrit-Sūtras und Semiotik in den Cultural Studies (published 2023), by
Alina Therese Lettner, many places, but especially pp. 291-294, 323-237:

https://kobra.uni-kassel.de/items/98ff4ea7-472f-42ac-b02c-2bc1e5f2176c

With best regards,
Gleb Sharygin