https://research.monash.edu/en/publications/agentivity-and-the-history-of-the-english-progressive/
Agentivity and the history of the English Progressive - Monash University
the history ofenglishprogressivemonashuniversity
https://msclogic.illc.uva.nl/theses/recent/publication/3720/The-Lattice-of-Case-and-Agentivity
The Lattice of Case and Agentivity | Master of Logic
latticecasemasterlogic