Landau levels for massive disclinated graphene-based topological insulator G. Q. Garcia, J. R. S. Oliveira, P. J. Porfírio and C. Furtado Eur. Phys. J. Plus, 140 3 (2025) 242 Published online: 19 March 2025 DOI: 10.1140/epjp/s13360-025-06153-y