Fred Sanders has a piece posted on the Scriptorium blog called "Cranmer Prays to the Trinity" in which he references one of Peter Toon's articles from 2001 here: "Praying to the Holy Trinity, One Lord, with Thomas Cranmer". He also commends the current issue of the PBS's journal The Mandate.
Scriptorium is sponsored by the Torrey Honors Institute of Biola University.
The PBS website and blog contain a large number of posts and articles, many by the late Rev'd Dr Peter Toon. The easiest way to find those in which you may be interested is to use the search box on the home page: this will search both the PBS website and the blog site.