P. Henn

Analgetische Wirksamkeit von periartikulär verabreichtem Morphin nach Schulterarthroskopien bei Patienten mit Impingementsyndrom

Key to the exercises in Ahn's First Latin book

Ahn's rudiments of the German language

A systematic synopsis of German grammar, being a comprehensive compilation of all the rules taught and exemplified in Ahn's Rudiments of the German language with references to the exercises on such rules

Ahn's first German reader