On Solutions of a Differential Equation which are not of Integrable Square. Frederick V. Atkinson; W. D. Evans — 1972 Mathematische Zeitschrift
Elliptic and degenerate-elliptic operators in unbounded domains D. E. Edmunds; W. D. Evans — 1973 Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
Finiteness of bound states of general n -body operators Evans, W. D.; Lewis, R.; Saitó, Y. — 1990 Equadiff 7
The HELP inequality for Hamiltonian systems. Brown, B. M.; Evans, W. D.; Marletta, M. — 1999 Journal of Inequalities and Applications [electronic only]