Ion-acoustic shock waves in magnetized pair-ion plasma T. Yeashna, R. K. Shikha, N. A. Chowdhury, A. Mannan, S. Sultana and A. A. Mamun Eur. Phys. J. D, 75 4 (2021) 135 Published online: 20 April 2021 DOI: 10.1140/epjd/s10053-021-00139-y