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1 |
Bulletin of the American Mathematical Society / Vol. 55, No. 6 (1949)
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2 |
Free world / Vol. 12, No. 1/2 (1946)
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3 |
Bulletin of the American Mathematical Society / Vol. 50, No. 4 (1944)
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4 |
Commune / 7. Année. Nu. 72 (1939)
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5 |
Europe / Nr. 188. 1938
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6 |
Jewish frontier / Vol. 4. No. 9 (1937)
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7 |
Europe / Nr. 164 (1936)
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8 |
Kroniek van hedendaagsche kunst en kultuur / Jg. 1, No. 4 (1936)
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9 |
A sequence of educational influences, traced through unpublished writings of Pestalozzi, Fröbel, Diesterweg, Horace Mann, and Henry Barnard Ulich, Robert. - Cambridge : Harvard University Press, 1935
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10 |
Numéro spécial consacré a Victor Hugo a l'occasion du cinquantenaire de sa mort Paris : Éd. Rieder, 1935
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