New developments in relativistic fluid dynamics with spin Samapan Bhadury, Jitesh Bhatt, Amaresh Jaiswal and Avdhesh Kumar Eur. Phys. J. Spec. Top., 230 3 (2021) 655-672 Published online: 16 April 2021 DOI: 10.1140/epjs/s11734-021-00020-4