- Interchurch Relations in Recent Years
- A Basic Doctrinal Difference Among Lutherans
- ELS: The Most Reactionary Splinter Group of Lutheranism in America or a Synod in the Mainstream of Lutheran Life?
- A Survey of Small Lutheran Groups in the United States
- Confessional Lutheranism in Europe: WELS and the Evangelical Lutheran Church-Synod of France and Belgium and Triangular Fellowship