Inequalities and eigenvalues of Sturm-Liouville problems near a singular boundary. Everitt, W.N.; Marletta, M.; Zettl, A. — 2001 Journal of Inequalities and Applications [electronic only]
An integral operator inequality with applications. Chisholm, R.S.; Everitt, W.N.; Littlejohn, L.L. — 1999 Journal of Inequalities and Applications [electronic only]
Five integral inequalities; an inheritance from Hardy and Littlewood. Evans, W.D.; Everitt, W.N.; Hayman, W.K.; Jones, D.S. — 1998 Journal of Inequalities and Applications [electronic only]
A Dirichlet Type Result for Ordinary Differential Operators. W.N. Everitt; M. Giertz — 1973 Mathematische Annalen
Some Remarks on a Separation and Limit - point Criterion of Second-order, Ordinary Differential Expressions. W.N. Everitt; M. Giertz; J. Weidmann — 1973 Mathematische Annalen