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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 to 4); 2 (1 to 4); 3 (1 to 4); 4 (1 to 4); 5 (1 to 3); 6 (1 to 3); 7 (1 to 3); 8 (1 to 3); 9 (1 to 3); 10 (1 to 3); 11 (1 to 3); 12 (1 to 3); 13 (1 to 3); 14 (1 to 3); 15 (1 to 3); 20 (1); 21 (2 to 4); 22 (1 to 4); 23 (1 to 4); 24 (1 to 4); 25 (1 to 4); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 5); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 40 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1, 2, 5, 6); 49 (1 to 6); 50 (1 to 6); 51 (1 to 6); 52 (1, 4 to 6); 53 (1 to 6); 54 (3 to 5); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 60 (2 to 6); 61 (1 to 6); 62 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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25 to 50
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LOCKSS Archive
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Preserved
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2026-04-13
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1 to 60
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CLOCKSS Archive
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Preserved
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2026-04-13
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ahead-of-print to 61
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LOCKSS Archive
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In Progress
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2026-04-13
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61, 62
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Portico
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Preserved
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2026-04-23
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Preserved : 1964/1965: 1(1-3), 1965/1966: 2(1-3), 1966/1967: 3(1-3), 1967/1968: 4(1-3), 1969: 5(1-3), 1970: 6(1-3), 1971: 7(1-3), 1972: 8(1-3), 1973: 9(1-3), 1974: 10(1-3), 1975: 11(1-3), 1976: 12(1-3), 1977: 13(1-3), 1978: 14(1-3), 1979: 15(1-3), 1980: 16(1-3), 1981: 17(1-3), 1982: 18(1-3), 1983: 19(1-3), 1984: 20(1-3), 1985: 21(1-3), 1986: 22(1-3), 1987: 23(1-3), 1988: 24(1-4), 1989: 25(1-4), 1990: 26(1-4), 1991: 27(1-4), 1992: 28(1-4), 1993: 29(1-4), 1994: 30(1-4), 1995: 31(1-4), 1996: 32(1-4), 1997/1998: 33(1-5), 1998: 34(1-4), 1999: 35(1-4), 2000: 36(1-4), 2001: 37(1-4), 2002: 38(1-4), 2003: 39(1-4), 2004: 40(1-6), 2005: 41(1-6), 2006: 42(1-6), 2007: 43(1-6), 2008: 44(1-6), 2009: 45(1-6), 2010: 46(1-6), 2011: 47(1-6), 2012: 48(1-6), 2013: 49(1-6), 2014: 50(1-6), 2015: 51(1-6), 2016: 52(1-6), 2017: 53(1-6), 2018: 54(1-6), 2019: 55(1-6), 2020: 56(1-6), 2020/2021: 57(1-6), 2021/2022: 58(1-6), 2023: 59(1-6), 2024: 60(1-6), 2025: 61(1-6), 2026: 62(1-2)
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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 : 4 (1 to 6); 5 (1 to 6); 6 (1 to 6); 33 (1 to 5); 34 (1 to 4); 35 (1 to 4); 36 (1 to 4); 37 (1 to 4); 38 (1 to 4); 39 (1 to 4); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6); 46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 61 (1 to 3)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 1 (1-4); 2 (1-4); 3 (1-4); 4 (1-4); 5 (1-3); 6 (1-3); 7 (1-3); 8 (1-3); 9 (1-3); 10 (1-3); 11 (1-3); 12 (1-3); 13 (1-3); 14 (1-3); 15 (1-3); 16 (1-3); 17 (1-4); 18 (1-4); 19 (1-4); 20 (1-4); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-4); 27 (1-4); 28 (1-4); 29 (1-4); 30 (1-4); 31 (1-4); 32 (1-4); 33 (1-5); 34 (1-4); 35 (1-4); 36 (1-4); 37 (1-4); 38 (1-4); 39 (1-4); 40 (1-6); 41 (1-6); 42 (1-6); 43 (1-6); 44 (1-6)
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Library of Congress
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Preserved
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2025-04-07
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46 (1 to 6); 47 (1 to 6); 48 (1 to 6); 49 (1 to 6); 50 (1 to 6); 51 (1 to 6); 52 (1 to 6); 53 (1 to 6); 54 (1 to 6); 55 (1 to 6); 56 (1 to 6); 57 (1 to 6); 58 (1 to 6); 59 (1 to 6); 60 (1 to 6)
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