Cylindrical solitary structures associated with dust-ion-acoustic waves in pair ion plasmas S. Sumaiya, S. Sultana, T. F. Rahman and A. A. Mamun Eur. Phys. J. Plus, 140 2 (2025) 141 Published online: 19 February 2025 DOI: 10.1140/epjp/s13360-025-06054-0