1. Gisela Schüler, ‘Zum Chronologie von Hegels Jugendschriften’, Hegel-Studien, Vol. 2, 1963, pp. 11–159.
2. Georg Wilhelm Friedrich Hegel, The History of Philosophy, trans. E. S. Haldane (Lincoln: University of Nebraska Press, 1995), Vol. I, p. 253.
3. Karl Marx On the Difference between the Democritean and Epicurean Philosophy of Nature, Marx-Engels Collected Works (New York: International Publishers, 1975) (henceforth MECW), Vol. I, p. 438.
4. Engels, ‘Vorwort’, Das Kapital, Marx-Engels Werke (Berlin: Dietz Verlag, 1985).
5. Hegel, Gesamelte Werke (Berlin: Verlag Duncker und Humblot, 1832–1845).