Though he published many of his own personal works, Külpe never penned any of the traditional Würzburg papers, so it is difficult to specify his personal interpretation of the work of the school. However, in many of his personal works he often anticipated notions that were later discussed by his students. Külpe managed to exert his influence on the field of psychology via his students. Max Wertheimer, the founder of Gestalt psychology was undoubtedly his most famous student. However other noteworthy students include Narziß Ach and Henry Watt, both of whom worked on the concept of mental set; Robert Morris Ogden, who played a major role in introducing Gestalt psychology to the United States; and Kurt Koffka, one of the founders of the Gestalt school.