Subgroups of the group of generalized Lorentz transformations and their geometric invariants. Bogoslovsky, George Yu. — 2005 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
Rapidities and observable 3-velocities in the flat Finslerian event space with entirely broken 3D isotropy. Bogoslovsky, George Yu. — 2008 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]