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Subjects: Women college faculty; Women mathematicians; Kovalevsky, Sonya ValsilyevnaGermany; Russia
Subjects: Zionists; Schapira, HermannGermany; Russia
Subjects: Socialists; Zionists; Syrkin, NachmanGermany; Russia; United States
Subjects: Spies; Red Orchestra; Trepper, LeopoldFrance; Germany; Poland