“Max Planck (with Walther Nernst, Heinrich Rubens and Emil Warburg), (1913) letter of recommendation for membership in the Prussian Academy of Sciences (1913) Collected Papers of Albert Einstein (CPAE) Vol. 5, Doc. 445 (1993)”
Source: Wikiquote
“Max Planck (with Walther Nernst, Heinrich Rubens and Emil Warburg), (1913) letter of recommendation for membership in the Prussian Academy of Sciences (1913) Collected Papers of Albert Einstein (CPAE) Vol. 5, Doc. 445 (1993)”
Source: Wikiquote