collaboration, T. L., Aaij, R., Beteta, C. A., Adeva, B., Adinolfi, M., Aidala, C. A., . . . Zucchelli, S. (2019). Measurement of CP violation in the B s 0 → ϕϕ $$ {B}_s^0\to \phi \phi $$ decay and search for the B 0 → ϕϕ decay. Journal of High Energy Physics, 2019(12), 1-34. https://doi.org/10.1007/JHEP12(2019)155

collaboration, The LHCb, et al. "Measurement of CP Violation in the B S 0 → ϕϕ $$ {B}_s^0\to \phi \phi $$ Decay and Search for the B 0 → ϕϕ Decay." Journal of High Energy Physics 2019, no. 12 (2019): 1-34. https://doi.org/10.1007/JHEP12(2019)155.

collaboration, The LHCb, et al. "Measurement of CP Violation in the B S 0 → ϕϕ $$ {B}_s^0\to \phi \phi $$ Decay and Search for the B 0 → ϕϕ Decay." Journal of High Energy Physics, vol. 2019, no. 12, 2019, pp. 1-34, https://doi.org/10.1007/JHEP12(2019)155.