On absolute retracts, P(S) and complemented subspaces of C ( D ω 1 ) Seymour Ditor; Richard Haydon — 1976 Studia Mathematica
Some binary representations of real numbers and odd solutions of the functional equation ... . Seymour Z. Ditor — 1979 Aequationes mathematicae
Some binary representations of real numbers and odd solutions of the functional equation ...f = g... . (Short Communication). Seymour Z. Ditor — 1978 Aequationes mathematicae