40. Hofstetter HW., A cmarisn f Duane´s and Donder´s tables of the amplitude of accommodation, Am J Optom Arch Am Acad Optom 1944;21 (9):345-362.

40. Hofstetter HW., A cmarisn f Duane´s and Donder´s tables of the amplitude of accommodation, Am J Optom Arch Am Acad Optom 1944;21 (9):345-362.