@inproceedings{Romiti:2022DY, author = "Romiti, Simone", title = "{The neutron-proton mass difference}", doi = "10.22323/1.396.0543", booktitle = "Proceedings of The 38th International Symposium on Lattice Field Theory {\textemdash} PoS(LATTICE2021)", year = 2022, volume = "396", pages = "543" }