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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; 7-8; 9; 10-12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22-23; 24; 25-27; 28; 29; 30 (2); 31 (1, 2); 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2); 37 (1); 38 (2); 39 (1, 2); 40 (1, 2); 41 (1, 2); 42 (1, 2); 43 (1, 2); 44 (1, 2); 45 (1, 2)
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Portico
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Preserved
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2026-04-02
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Preserved : 1963: 1(1), 1964: 2(1), 1965: 3(1), 1966: 4(1), 1967: 5(1), 1968: 6(1), 1969: 7-8(1), 1971: 9(1), 1972: 10-12(1), 1975: 13(1), 1976: 14(1), 1977: 15(1), 1978: 16(1), 1979: 17(1), 1980: 18(1), 1981: 19(1), 1982: 20(1), 1983: 21(1), 1984: 22-23(1), 1986: 24(1), 1987: 25-27(1), 2006: 28(1), 2008: 29(1), 2010: 30(1-2), 2011: 31(1-2), 2012: 32(1-2), 2013: 33(1-2), 2014: 34(1-2), 2015: 35(1)
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Portico
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Preserved
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2026-04-02
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Preserved : 2015: 35(1-2), 2016: 36(1-2), 2017: 37(1-2), 2018: 38(1-2), 2019: 39(1-2), 2020: 40(1-2), 2021: 41(1-2), 2022: 42(1-2), 2023: 43(1-2), 2024: 44(1-2), 2025: 45(1-2)
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LOCKSS Archive
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Preserved
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2026-03-30
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1 to 22, 24, 25, 28 to 44
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CLOCKSS Archive
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Preserved
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2026-03-30
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35, 36
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LOCKSS Archive
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In Progress
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2026-03-30
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45
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CLOCKSS Archive
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Preserved
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2026-03-30
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1 to 7, 9, 10, 13 to 22, 24, 25, 28 to 45
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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 : 37 (1, 2); 38 (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 : 37 (1, 2); 38 (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 : 3 (1, 2); 4 (1, 2); 28 (1); 29; 31 (2); 32 (1, 2); 33 (1, 2); 34 (1, 2); 35 (1, 2); 36 (1, 2); 37 (1, 2); 38 (1, 2); 39 (1, 2); 41 (1, 2); 42 (1, 2); 43 (1, 2); 44 (1, 2)
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Library of Congress
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Preserved
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2025-04-07
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37 (1, 2); 38 (1, 2); 39 (1, 2); 40 (1, 2); 41 (1, 2); 42 (1, 2); 43 (1, 2); 44 (1, 2)
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