Exact Lorentz-violating all-loop ultraviolet divergences in scalar field theories P. R. S. Carvalho and M. I. Sena-Junior Eur. Phys. J. C, 77 11 (2017) 753 Published online: 09 November 2017 DOI: 10.1140/epjc/s10052-017-5304-9