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CLOCKSS Archive
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In Progress
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2026-02-09
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1, 3 to 16, 19 to 96
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LOCKSS Archive
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In Progress
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2026-02-09
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1, 3 to 16, 19 to 70, 96
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LOCKSS Archive
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Preserved
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2026-02-09
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71 to 95
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 20 (1); 52; 73 (6); 76 (, 1 to 6); 77 (, 1 to 6); 78 (, 1 to 6); 79 (, 1 to 6); 80 (, 1 to 6, 338); 81 (, 1 to 6); 82 (, 1 to 6); 83 (, 1 to 6); 84 (, 1 to 6); 85 (, 1 to 6); 86 (, 1 to 6); 87 (, 1 to 6); 88 (, 1 to 6); 89 (, 1 to 6); 90 (, 1 to 6); 91 (, 1 to 6); 92 (, 1 to 6); 1962; 1981; 2002; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021
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Internet Archive
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Preserved
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2025-08-08
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74
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Portico
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Preserved
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2026-02-12
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Preserved : 1934: 5(S 1)
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Portico
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Preserved
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2026-02-12
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Preserved : 1936: 7(S 2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1939: 10(S 3)
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Portico
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Preserved
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2026-02-12
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Preserved : 1948: 19(S 4)
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Portico
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Preserved
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2026-02-12
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Preserved : 1950: 21(S 5, S 6, S 7), 1951: 22(S 8, S 9), 1952: 23(S 10, S 11), 1953: 24(S 12, S 13, S 14), 1954: 25(S 15, S 16, S 17), 1955: 26(S 18, S 19, S 20)
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Portico
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Preserved
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2026-02-12
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Preserved : 1956: 27(S 21), 1957: 28(S 23, S 24, S 25, S 26, S 27, S 28), 1958: 29(S 29, S 30, S 31, S 32, S 33, S 34, S 35, S 36), 1959: 30(S 37, S 38, S 39, S 40, S 41, S 42), 1960: 31(S 43, S 44a, S 44b, S 45, S 46, S 47, S 48), 1961: 32(S 49, S 50, S 51, S 52), 1962: 33(S 53, S 54, S 55, S 56, S 57, S 58, S 59), 1963: 34(S 60, S 61, S 62, S 63), 1964: 35(S 64, S 65, S 66, S 67, S 68, S 69, S 70, S 71, S 72, S 73, S 74, S 75), 1965: 36(S 76, S 77, S 78, S 79, S 80, S 81, S 82, S 83, S 84, S 85), 1966: 37(S 86, S 87, S 88, S 89, S 90, S 91, S 92, S 93), 1967: 38(S 94, S 95, S 96, S 97, S 98, S 99, S 100, S 101, S 102, S 103, S 104, S 105, S 106, S 107, S 108, S 109, S 110), 1968: 39(S 111, S 112, S 113, S 114, S 115, S 116, S 117), 1969: 40(S 118, S 119, S 120, S 121, S 122, S 123, S 124, S 125, S 126, S 127, S 128), 1970: 41(S 129, S 130, S 131, S 132, S 133, S 134, S 135, S 136), 1971: 42(S 137, S 138, S 139), 1972: 43(S 140, S 141, S 142, S 143, S 144, S 145, S 146, S 147), 1973: 44(S 148, S 149, S 150, S 151, S 152), 1974: 45(S 153, S 154, S 155, S 156, S 157, S 158), 1975: 46(S 159, S 160, S 161), 1976: 47(S 162, S 163, S 164), 1977: 48(S 165, S 166, S 167, S 168, S 169, S 170), 1978: 49(S 171, S 172, S 173), 1979: 50(S 174, S 175, S 176, S 177, S 178, S 179, S 180, S 181), 1980: 51(S 182, S 183, S 184, S 185, S 186), 1981: 52(S 187, S 188, S 189, S 190, S 191, S 192, S 193)
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Portico
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Preserved
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2026-02-12
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Preserved : 1988: 59(2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1992: 63(6)
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Portico
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Preserved
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2026-02-12
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Preserved : 2000: 71(S 291, S 293, S 294, S 295, S 297), 2001: 72(S 298, S 299, S 300, S 301, S 302)
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Portico
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Preserved
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2026-02-12
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Preserved : 2002: 73(6, S 303, S 304, S 305, S 306), 2003: 74(S 308, S 309)
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Portico
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Preserved
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2026-02-12
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Preserved : 2005: 76(S 316, S 318, S 319), 2006: 77(S 320, S 321, S 322, S 323, S 324), 2007: 78(S 325, S 326), 2008: 79(S 330), 2009: 80(1, 5-6, S 332, S 333, S 334, S 335, S 336, S 337, S 338), 2010: 81(1-6, S 339, S 340, S 341), 2011: 82(1-6, S 342, S 343, S 344), 2012: 83(1-6, S 345, S 346, S 347, S 348), 2013: 84(1-6, S 349, S 350, S 351, S 352), 2014: 85(1-6, S 353, S 354, S 355, S 356, S 357), 2014/2015: 86(1-6, S 358, S 359, S 360, S 361)
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CLOCKSS Archive
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Preserved
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2026-02-09
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ahead-of-print, 76 to 92
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LOCKSS Archive
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Preserved
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2026-02-09
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76 to 92
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Portico
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Preserved
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2026-02-12
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Preserved : 1997: 68(1-6), 1998: 69(1-6), 1999: 70(1-6), 2000: 71(1-6), 2001: 72(1-6), 2002: 73(1-6), 2003: 74(1-6), 2004: 75(1-3, 5), 2005: 76(1-6, sup315-sup319), 2006: 77(1-6, sup320-sup324), 2007: 78(1-6, sup325-sup328), 2008: 79(1-6, sup329-sup330), 2009: 80(1-6, sup331-sup338), 2010: 81(1-6, sup339-sup341), 2011: 82(1-6, sup342-sup344), 2012: 83(1-6, sup345-sup348), 2013: 84(1-6, sup349-sup352), 2014: 85(1-6, sup353-sup357), 2015: 86(1-6, sup358-sup361), 2016: 87(1-6, sup363), 2017: 88(1-6), 2018: 89(1-6), 2019: 90(1-6), 2020: 91(1-6), 2020/2021: 92(1-6)
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Public Knowledge Project PLN
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Preserved
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2026-02-12
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Preserved : 5 (1-4); 7 (sup2, 1, 2, 3-4); 8 (1-2, 3-4); 9 (1, 2-3, 4); 10 (sup3, 1-4); 11; 12; 13 (4); 14 (1-4); 15 (2-4); 16 (1-4); 17; 18; 19 (sup4, 1 to 4); 20 (2 to 4); 21 (sup5, 1, 2-4); 22 (sup8, 1-4); 23 (sup10, 1 to 4); 24 (sup12, 1-4); 25 (sup15, 1-4); 26 (sup18, 1 to 4); 27 (sup21, 1-4); 28 (sup23, 1-2, 3, 4); 29 (sup29, 1-4); 30 (sup38, 1-4); 31 (sup43, 1 to 4); 32 (sup49, 1-4); 33 (sup53); 34 (4); 35 (sup64, 1-4); 36 (sup76, 1 to 4); 37 (sup86, 1 to 4); 38 (sup100, 1-4); 39 (sup111, 1-3, 4); 40 (sup118, 1 to 6); 41 (sup129, 1 to 3, 5, 6); 42 (sup137, 1 to 6); 43 (sup140, 1 to 6); 44 (sup148, 1, 2, 6); 45 (sup153, 1-4, 5, 6); 46 (sup159, 1 to 5); 47 (sup162, 1, 3 to 6); 48 (sup165, 1 to 6); 49 (sup171, 2 to 6); 50 (sup174, 1 to 6); 51 (sup182); 52 (1 to 6); 53 (sup196, 1 to 6); 54 (sup199, 1 to 6); 55 (sup206, 1 to 6); 56 (sup211, 1 to 6); 57 (sup218, 1 to 6); 58 (sup222, 1 to 6); 59 (sup227, 1 to 6); 60 (sup229, 1 to 6); 61 (sup235, 1 to 6); 62 (sup241, 1 to 6); 63 (sup247, 1 to 6); 64 (sup251, 1 to 6); 65 (sup256, 1 to 6); 66 (sup263, 1 to 6); 67 (sup267, 1 to 6); 68 (sup273, 1 to 6); 69 (sup278, 1 to 6); 70 (sup284, 1 to 6); 71 (sup290, 1 to 6); 72 (sup298, 1 to 6); 73 (sup303, 1 to 6); 74 (sup307, 1 to 6); 75 (sup311, 1 to 6); 76 (sup315, 1 to 6); 77 (sup320, 1 to 6); 78 (sup325, 1 to 6); 79 (sup329, 1 to 6); 80 (sup331, 1 to 6, 338); 81 (sup339, 1 to 6); 82 (sup342, 1 to 6); 83 (sup345, 1 to 6); 84 (sup349, 1 to 6); 85 (sup353, 1 to 6); 86 (sup358, 1 to 6); 87 (sup363, 1 to 6); 88 (1 to 6); 89 (1 to 6); 90 (1 to 6); 91 (1 to 4, 6); 92 (1 to 6); 93; 94; 95; 96
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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 : 8 (sup331, 1 to 6, 338); 9 (1 to 6); 76 (sup315, 1 to 6); 77 (sup32, 1 to 6); 78 (sup325, 1 to 6); 79 (sup329, 1 to 6); 81 (sup339, 1 to 6); 82 (sup342, 1 to 6); 83 (sup345, 1 to 6); 84 (sup349, 1 to 6); 85 (sup353, 1 to 6); 86 (sup358, 1 to 6); 87 (sup1, 1 to 6); 88 (1 to 6); 89 (1 to 6); 91 (1 to 6); 92 (1 to 6)
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