New traveling waves for a (2 + 1)-dimensional chemotactic system with uniform flow W. Domgno Kuipou, D. Belobo Belobo and A. Mohamadou Eur. Phys. J. Plus, 136 6 (2021) 701 Published online: 29 June 2021 DOI: 10.1140/epjp/s13360-021-01692-6