General absolute Borel-type methods. B.L.R. Shawyer — 1970 Journal für die reine und angewandte Mathematik
A strong-Riesz mean-value theorem with applications to summability factor theorems. W. Kratz; B.L.R. Shawyer — 1978 Journal für die reine und angewandte Mathematik
Tauberian Relations between the Abel-Type and the Borel-Type Methods of Summability. B.L.R. Shawyer; G.S. Yang — 1971 Manuscripta mathematica