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Offner, Max, 1864-1932.
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Die geistige Ermüdung : eine zusammenfassende Darstellung des Wesens der geistigen Ermüdung, der Methoden der Ermüdungsmessung und ihrer Ergebnisse speziell für den Unterricht / von Max Offner.
Offner, Max, 1864-1932.Date: 1910
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Mental fatigue : a comprehensive exposition of the nature of mental fatigue, of the methods of its measurement and of their results, with special reference to the problems of instruction / by Dr. Max Offner tr. from the German by Guy Montrose Whipple.
Offner, Max, 1864-1932.Date: 1911
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Mental fatigue : a comprehensive exposition of the nature of mental fatigue, of the methods of its measurement and of their results, with special reference to the problems of instruction / by Max Offner ; translated from the German by Guy Montrose Whipple.
Offner, Max, 1864-1932.Date: 1911