Author: Everitt, William Norrie

Everitt, William Norrie: On the transformation theory of ordinary second-order linear symmetric differential expressions. (English). Czechoslovak Mathematical Journal, vol. 32 (1982), issue 2, pp. 275-306
Everitt, William Norrie; Wray, S. D.: A singular spectral identity and inequality involving the Dirichlet integral of an ordinary differential expression. (English). Czechoslovak Mathematical Journal, vol. 32 (1982), issue 4, pp. 589-607
Everitt, William Norrie; Giertz, Magnus: On the limit-3 classification of the square of a second-order, linear differential expression. (English). Czechoslovak Mathematical Journal, vol. 26 (1976), issue 4, pp. 653-665