@article{Simons:2022Ll, author = "Simons, Daniel and Gustafson, Erik and Meurice, Yannick", title = "{Variations to the z-Expansion of the Form Factor Describing the Decay of B Mesons}", doi = "10.22323/1.396.0182", journal = "PoS", year = 2022, volume = "LATTICE2021", pages = "182" }