Ian Hollenbaugh has published a new article “A New Approach to Prohibitive Constructions in the R̥gveda and the Atharvaveda” in the Journal of the American Oriental Society. The article may be found here.
2020. A New Approach to Prohibitive Constructions in the R̥gveda and the Atharvaveda. Journal of the American Oriental Society 140.4:777–802