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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 46 (445); 1999
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 39, 41 to 71
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Portico
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Preserved
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2026-02-12
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Preserved : 1954: 1(1-4), 1955: 2(5-16), 1956: 3(17-28), 1957: 4(29-40), 1958: 5(41-52), 1959: 6(53-64), 1960: 7(65-76), 1961: 8(77-88), 1962: 9(89-100), 1963: 10(101-109, 111-112), 1964: 11(113-124), 1965: 12(125-136), 1966: 13(137-148), 1967: 14(149-160), 1968: 15(161-172), 1969: 16(173-184), 1970: 17(185-196), 1971: 18(197-208), 1972: 19(209-220), 1973: 20(221-232), 1974: 21(233-244), 1975: 22(245-256), 1976: 23(257-268), 1977: 24(269-280), 1978: 25(281-292), 1979: 26(293-304), 1980: 27(305-307, 309-316), 1981: 28(317-328), 1982: 29(329, 331-340), 1983: 30(341-352), 1984: 31(353-362, 364), 1985: 32(365-376), 1986: 33(377-383, 385-388), 1987: 34(389-400), 1988: 35(401)
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Portico
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Preserved
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2026-02-12
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Preserved : 1989: 36(405), 1990: 37(410), 1991: 38(413), 1992: 39(420)
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LOCKSS Archive
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In Progress
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2026-02-09
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37 to 39, 41 to 56
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CLOCKSS Archive
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In Progress
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2026-02-09
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37 to 39, 41 to 71
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Portico
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Preserved
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2026-02-12
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Preserved : 1994: 41(427), 1995: 42(432), 1996: 43(436), 1997: 44(437), 1998: 45(441), 1999: 46(445), 2000: 47(449-452), 2001: 48(1-4), 2002: 49(1-4), 2003: 50(1-4), 2004: 51(1-4), 2005: 52(1-4), 2006: 53(1-4), 2007: 54(1-4), 2008: 55(1-4), 2009: 56(1-4), 2010: 57(1-4), 2011: 58(1-4), 2012: 59(1-4), 2013: 60(1-4), 2014: 61(1-4), 2015/2016: 62(1-4), 2017: 63(1-4), 2017: 64(1-2), 2018: 65(1-2), 2019: 66(1-4), 2020: 67(1-4), 2021: 68(1-4), 2022: 69(1-2), 2023: 70(1-2), 2024: 71(1-2)
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LOCKSS Archive
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Preserved
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2026-02-09
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57 to 71
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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 : ; 1 (1 to 4, 11 to 19, 111, 112); 2 (1, 5 to 9, 11 to 16, 23, 221 to 229, 231, 232); 3 (2, 17 to 19, 21 to 28, 35, 341 to 349, 351, 352); 4 (3, 4, 29, 31 to 39); 5 (1,2, 3 to 5, 41 to 49, 51, 52); 6 (1-4, 6, 53 to 59, 61 to 64); 7 (7, 65 to 69, 71 to 76); 8 (8, 77 to 79, 81, 82, 84 to 88); 9 (1, 9, 89, 91 to 99); 11 (12, 113 to 119, 121 to 124); 12 (13, 125 to 129, 131 to 136); 13 (14, 137 to 139, 141 to 148); 14 (15, 16, 149, 151 to 159); 15 (17, 161 to 169, 171, 172); 16 (18, 173 to 179, 181 to 184); 17 (19, 185 to 189, 191 to 196); 18 (2, 21 to 28, 197 to 199); 19 (21, 22, 29, 211 to 219); 21 (24, 233 to 239, 241 to 244); 22 (25, 245 to 249, 251 to 256); 23 (26, 257 to 259, 261 to 268); 24 (27, 28, 269, 271 to 279); 25 (29, 281 to 289, 291, 292); 26 (3, 31 to 34, 293 to 299); 27 (31, 35 to 37, 39, 311 to 316); 28 (32, 317 to 319, 321 to 328); 29 (34, 329, 331 to 339); 31 (36, 353 to 359, 361, 362, 364); 32 (37, 365 to 369, 371 to 376); 33 (38, 377 to 379, 381 to 383, 385 to 388); 34 (4, 39, 389, 391 to 399); 35 (41); 36 (45); 37 (41); 38 (413); 39 (42); 41 (427); 42 (432); 43 (436); 44 (437); 45 (441); 46 (445); 47 (45, 449, 451, 452); 48 (1 to 4); 49 (1 to 4); 51 (1, 2,3, 4); 52 (1 to 4); 53 (1 to 4); 54 (1, 2-3, 4); 55 (1-2, 3, 4); 56 (1-2, 3-4); 57 (1-2, 3-4); 58 (1, 2-3, 4); 59 (1-2, 3-4); 61 (1-2, 3-4); 62 (1-2, 3-4); 63 (1-2, 3-4); 64 (1-2); 65 (2); 66 (1 to 4); 67 (1, 2-4); 68 (1-2, 3-4); 69 (1)
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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 : 35 (401); 36 (405); 37 (410); 38 (413); 39 (420); 41 (427); 42 (432); 43 (436); 44 (437); 46 (445); 47 (449-452); 48 (1-4); 49 (1-4); 50 (1-2, 3, 4); 51 (1, 2-3, 4); 52 (2-4); 53 (1-4); 54 (1, 2-3, 4); 55 (1-2, 3, 4); 56 (1-2, 3-4); 58 (4); 59 (1-2, 3-4); 60 (1-4); 61 (3-4); 62 (1-2, 3-4); 63 (1-2, 3-4); 64 (1-2); 65 (2); 66 (1-3)
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