(en) Tosio. Kato, « Schrödinger operators with singular potentials », Israel J. Math., vol. 13, , p. 135–148 (DOI10.1007/BF02760233)
W. Arendt et A.F.M. ter Elst, Kato’s Inequality, vol. 146, Springer, coll. « Analysis and Operator Theory. Springer Optimization and Its Applications », (DOI10.1007/978-3-030-12661-2_3)
Haı̈m Brezis et Augusto Ponce, Kato's inequality when is a measure, vol. 338, coll. « Comptes Rendus de l'Academie des Sciences - Series I: Mathematics », (DOI10.1016/j.crma.2003.12.032), p. 599-604
(en) Toshio Horiuchi, « Some remarks on Kato’s inequality », Journal of Inequalities and Applications, (DOI10.1155/S1025583401000030)