Canonical gradings of monadsBreuvart, Flavien; McDermott, Dylan; Uustalu, TarmoProceedings of the 5th Annual International Applied Category Theory Conference (ACT 2022), Glasgow, United Kingdom, 18-22 July 20222022 https://doi.org/10.4204/eptcs.380 https://msp.cis.strath.ac.uk/act2022/papers/ACT2022_paper_4328.pdf

Combining effects and coeffects via gradingGaboardi, Marco; Katsumata, Shin-ya; Orchard, Dominic; Breuvart, Flavien; Uustalu, TarmoICFP 2016 : proceedings of the 21st ACM SIGPLAN International Conference on Functional Programming : Nara, Japan, September 18-24, 20162016 / p. 476-489 https://doi.org/10.1145/2951913.2951939