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Verfahren zur Herstellung von gegen mechanische und chemische Einflüsse widerstandsfähigen Compoundkörpetn unter theilweiser Benutzung des durch Patent Nr. 14673 geschützten Verfahrens
Balthasar Hubmaier, theologian of anabaptism, transl. and ed. by H. Wayne Pipkin and John H. Yoder, Scottsdale, PA 1989 (Classics of radical Reformation 5)