Ernst Zermelo, Collected Works. Gesammelte Werke. Vol. I: Set Theory, Miscellania. Mengenlehre, Varia. hg. v. H.-D. Ebbinghaus/A. Kanamori, Springer: Berlin/Heidelberg 2010
V. Peckhaus, Bulletin of Symbolic Logic 19 (2013) 491–492.