Yohann Le Floch, Joseph Palmer, “Semitoric Families”, Memoirs of the AMS, 302:1514 (2024)
Philip Arathoon, “Singular Reduction of the $2$-Body Problem on the $3$-Sphere and the $4$-Dimensional Spinning Top”, Regul. Chaotic Dyn., 24:4 (2019), 370–391
Eva Miranda, “Integrable systems and group actions”, Open Mathematics, 12:2 (2014), 240
Bernard R.C., Matessi D., “Lagrangian 3-Torus Fibrations”, J Differential Geom, 81:3 (2009), 483–573