116. Discussions of Lectures in Bonn [Einstein et al. 1923] Printed version of the discussions following two lectures delivered at a meeting of the Deutsche Physikalische Gesellschaft in Bonn, held 16–22 September 1923. Dated 16–22 September 1923 Published 15 November 1923 In: Physikalische Zeitschrift 24 (1923): 472–473, 484.