Bibliographie
« Paul and the Late Middle Ages »,
in A Companion to Paul in the Reformation :
Leiden, Boston, Brill, 2009, p. 15–40
The Anabaptist View of the Church,
Boston 1958
Anabaptists
A Companion to Anabaptism and Spiritualism, 1521-1700,
(Brill's Companions to the Christian Tradition:6),
Leiden/Boston, Brill, 2007
Anabaptism, Spiritualism