Some matrix inequalities of London type Bertram Mond; Josip E. Pečarić — 1996 Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
On Jensen's inequality for self-adjoint operators in Hilbert space Sever Silvestru Dragomir; Bertram Mond; Josip E. Pečarić — 1995 Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica