↑ See the sentence on the last page (p.641) of the original edition of Ist die Trägheit eines Körpers von seinem Energieinhalt abhängig? in Annalen der Physik, 1905, below the equation K0 - K1= L/V2 v2/2. See also the sentence under the last equation in the English translation, K0 - K1= 1/2 L/c2 v2, and the comment on the symbols used in About this edition that follows the translation
↑ See the sentence on the last page (p.641) of the original edition of Ist die Trägheit eines Körpers von seinem Energieinhalt abhängig? in Annalen der Physik, 1905, above the equation K0 - K1= L/V2 v2/2. See also the sentence above the last equation in the English translation, K0 - K1= 1/2 L/c2 v2, and the comment on the symbols used in About this edition that follows the translation
↑ Planck, M. (1907). Ber.d.Berl.Akad. 29: 542. Missing or empty |title= (help)
↑ Stark, J. (1907). "Elementarquantum der Energie, Modell der negativen und der positiven Elekrizitat". Physikalische Zeitschrift. 24 (8): 881.
↑ A.Einstein 'E = mc2 ': the most urgent problem of our time Science illustrated, vol. 1 no. 1, April issue, pp. 16-17, 1946 (item 417 in the "Bibliography"
↑ M.C.Shields Bibliography of the Writings of Albert Einstein to May 1951 in Albert Einstein: Philosopher-Scientist by Paul Arthur Schilpp (Editor) Albert Einstein Philospher - Scientist
↑ In F. Fernflores. The Equivalence of Mass and Energy. Stanford Encyclopedia of Philosophy.
