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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 4); 6 (1 to 4); 7 (1 to 4); 8 (1 to 4); 9 (1 to 4); 10 (1 to 4); 11 (1 to 4); 12 (1, 1.2, 2 to 4); 13 (1 to 4); 14 (1, 1.1, 1.2, 2 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1, 2, 2.1, 2.2, 3S, 4); 19 (1, 2 to 4); 20 (1, 2_part2, 2.1, 2.2, 3, 4); 21 (1 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); XXXII (1 to 4); 33 (1 to 4); 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 4); 41 (1 to 4); 42 (1 to 4); 43 (1 to 4); 44 (1 to 4); 45 (1 to 4); 46 (1 to 4); 47 (1 to 4); 48 (1 to 4); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1 to 4); 54 (1 to 4); 55 (1 to 4); 56 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 3); 70 (1, 2, 4); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (1 to 4); 76 (1 to 4); 77 (1 to 4); 78 (1 to 4); 79 (1)
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Internet Archive
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Preserved
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2025-08-08
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1-6 to 67
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Portico
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Preserved
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2026-05-14
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Preserved : 1948: 1(1-4), 1949: 2(1-4), 1950: 3(1-4), 1951: 4(1-4), 1952: 5(1-4), 1953: 6(1-4), 1954: 7(1-4), 1955: 8(1-4), 1956: 9(1-4), 1957: 10(1-4), 1958: 11(1-4), 1959: 12(1-4), 1960: 13(1-4), 1961: 14(1-4), 1962: 15(1-4), 1963: 16(1-4), 1964: 17(1-4), 1965: 18(1-4), 1966: 19(1-4), 1967: 20(1, 2_p2, 3-4), 1968: 21(1-4), 1969: 22(1-4), 1970: 23(1-4), 1971: 24(1-4), 1972: 25(1-4), 1973: 26(1-4), 1974: 27(1-4), 1975: 28(1-4), 1976: 29(1-4), 1977: 30(1-4), 1978: 31(1-4), 1979: 32(1-4), 1980: 33(1-4), 1981: 34(1-4), 1982: 35(1-4), 1983: 36(1-4), 1984: 37(1-4), 1985: 38(1-4), 1986: 39(1-4), 1987: 40(1-4), 1988: 41(1-4), 1989: 42(1-4), 1990: 43(1-4), 1991: 44(1-4), 1992: 45(1-4), 1993: 46(1-4), 1994: 47(1-4), 1995: 48(1-4), 1996: 49(1-4), 1997: 50(1-4), 1998: 51(1-4), 1999: 52(1-4), 2000: 53(1-4), 2001: 54(1-4), 2002: 55(1-4), 2003: 56(1-4), 2004: 57(1-4), 2005: 58(1-4), 2006: 59(1-4), 2007: 60(1-4), 2008: 61(1-4), 2009: 62(1-4), 2010: 63(1-4), 2011: 64(1-4), 2012: 65(1-4), 2013: 66(1-4), 2014: 67(1-4), 2015: 68(1-4), 2016: 69(1-4), 2017: 70(1-4), 2018: 71(1-4), 2019: 72(1-4), 2020: 73(1-4), 2021: 74(1-4), 2022: 75(1-4), 2023: 76(1-4), 2024: 77(1-4), 2025: 78(1-4), 2026: 79(1-2)
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CLOCKSS Archive
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In Progress
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2026-05-18
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46 to 58, 60, 69 to 79
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LOCKSS Archive
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In Progress
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2026-05-18
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46 to 55, 78, 79
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LOCKSS Archive
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Preserved
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2026-05-18
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56 to 77
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CLOCKSS Archive
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Preserved
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2026-05-18
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59, 61 to 68
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Library of Congress
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Preserved
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2025-04-07
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63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 70 (1 to 4); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (1 to 4); 76 (1 to 4); 77 (1 to 4)
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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 : 4 (2); 5 (4); 6 (2, 3); 7 (4); 10 (1); 12; 14; 18 (2-1, 4); 20 (2_part2, 4); 21 (1, 3); 23 (1); 24 (2, 4); 25 (3); 26 (4); 28 (1, 3, 4); 29 (1, 2); 30 (3, 4); 31 (1, 3); 32 (1, 4); XXXII (2); 34 (1); 39 (2-4); 40 (2); 41 (1, 2); 42; 44; 45 (4); 51; 52 (1-4); 53 (1-4); 54 (1-4); 55 (1-4); 56 (2-4); 58 (1); 59 (4); 60 (1-4); 61 (1-4); 62 (1-4); 63 (1-4); 64 (1-4); 65 (1-4); 66 (1-4); 67 (1-4); 68 (1, 2, 4); 69 (1-3); 70 (1-4); 71 (1-4)
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British Library
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Preserved
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2019-09-18
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Preserved : 67 (1 to 4), 68 (1 to 4), 69 (1 to 4), 70 (1 to 4), 71 (1 to 4)
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