@inproceedings{Green:2019EM, author = "Green, Jeremy", title = "{Systematics in nucleon matrix element calculations}", doi = "10.22323/1.334.0016", booktitle = "Proceedings of The 36th Annual International Symposium on Lattice Field Theory {\textemdash} PoS(LATTICE2018)", year = 2019, volume = "334", pages = "016" }