New inequalities of Gr\"{u}ss--Lupa\c{s} type and Applications for Selfadjoint Operators. Armenian Journal of Mathematics, [S. l.], v. 8, n. 1, p. 25–37, 2016. Disponível em: https://armjmath.sci.am/index.php/ajm/article/view/121.. Acesso em: 5 may. 2024.