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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 1 (1); 2; 3; 4; 5; 6 (2 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1 to 4); 13 (1 to 4); 14 (1 to 4)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.15:1-4;vol.16:1-4;vol.17:1-4;vol.18:1-4;vol.19:1-4;vol.20:1-4;vol.21:1-4;vol.22:1-4;vol.23:1-4;vol.24:1-2,3-4;vol.25:1-4;vol.26:1
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Portico
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Preserved
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2026-04-16
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Preserved : 1983: 1(1), 1984: 2(1), 1985: 3(1), 1986: 4(1), 1987: 5(1), 1988: 6(1-4), 1989: 7(1-4), 1990: 8(1-4), 1991: 9(1-4), 1992: 10(1-4), 1993: 11(1-4), 1994: 12(1-4), 1995: 13(1-4), 1996: 14(1-4), 1997: 15(1-4), 1998: 16(1-4), 1999: 17(1-4)
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CLOCKSS Archive
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Preserved
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2026-04-13
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9 to 26
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 2 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1, 2, 3?4); 25 (1 to 4); 26 (1)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 2 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 21 (1 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1, 2, 3?4); 25 (1 to 4); 26 (1)
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