. . "Erika"@en . . . "Erika (Leissner) Ising" . . "1928-04-23" . . . "Leissner" . . . . "http://www.wikidata.org/entity/Q6581072" . "Erika Leissner Ising" . "Erika Leissner" . . . . . "Erika Leissner" . "Erika Ising"@en . "Ising"@en . . "(Leissner)" .