INGALAHALLI, G. Geometric study of Ricci solitons in perfect fluid spacetimes with Lorentzian concircular structure manifolds. Calculation, [S. l.], v. 1, n. 2, p. 103–116, 2025. Disponível em: https://www.simadp.com/calculation/article/view/352. Acesso em: 7 jul. 2025.