Neils Conzen, Kathleen (1990):
"Making Their Own America: Assimilation Theory and the German Peasant Pioneer ." Washington, D.C., 01.11.1989. New York; Oxford: Berg. German Historical Institute Washington, D.C.: Annual Lecture Series; 3.

This document includes two comments: "Sombart and the Sauk River Settlements" by Mack Walker and "Ethnic Persistence and Transformation: A Response to Kathleen N. Conzen" by Jörg Nagler.