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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 12); 2 (1 to 12); 3 (1 to 10, 11-12); 4 (1 to 6); 5 (1 to 4, 5-6); 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 to 4); 13 (1 to 4); 14 (1 to 4); 15 (1 to 4); 16 (1 to 4); 17 (1 to 4); 18 (1 to 4); 19 (1 to 4); 20 (1 to 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 (3, 4); 31 (1 to 4); 32 (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, 2, 4); 57 (1 to 4); 58 (1 to 3)
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Internet Archive
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Preserved
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2025-08-08
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8 to 27
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LOCKSS Archive
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In Progress
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2026-06-01
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1 to 30, 58
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Portico
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Preserved
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2026-05-28
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Preserved : 1968: 1(1-12), 1969: 2(1-12), 1970: 3(1-12), 1971: 4(1-6), 1972: 5(1-6), 1973: 6(1-4), 1974: 7(1-4), 1975: 8(1-4), 1976/1977: 9(1-4), 1977/1978: 10(1-4), 1978/1979: 11(1-4), 1979/1980: 12(1-4), 1980/1981: 13(1-4), 1981/1982: 14(1-4), 1982/1983: 15(1-4), 1983/1984: 16(1-4), 1984/1985/1986: 17(1-4), 1985/1986: 18(1-4), 1986/1987: 19(1-4), 1987/1988: 20(1-4), 1989: 21(1-4), 1990: 22(1-4), 1991: 23(1-4), 1992/1993: 24(1-4), 1993/1994: 25(1-4), 1994/1995: 26(1-4), 1995/1996: 27(1-4), 1996/1997: 28(1-4), 1998/1999: 29(1-4), 1998/2000: 30(1-4), 2000/2001: 31(1-4), 2001/2002: 32(1-4), 2002/2003: 33(1-4), 2003/2004: 34(1-4), 2004/2005: 35(1-4), 2005/2006: 36(1-4), 2006/2007: 37(1-4), 2006: 38(1-4), 2006/2007: 39(1-4), 2007/2008: 40(1-4), 2008/2009: 41(1-4), 2009/2010: 42(1-4), 2010/2011: 43(1-4), 2011/2012: 44(1-4), 2012/2013: 45(1-4), 2013/2014: 46(1-4), 2014/2015: 47(1-4), 2015/2016: 48(1-4), 2016/2017: 49(1-4), 2017/2018: 50(1-4), 2018/2019: 51(1-4), 2019/2020: 52(1-4), 2020/2021: 53(1-4), 2021/2022: 54(1-4), 2022/2023: 55(1-4), 2023/2024: 56(1-4), 2024/2025: 57(1-4), 2025/2026: 58(1-4)
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LOCKSS Archive
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Preserved
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2026-06-01
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31 to 57
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Library of Congress
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Preserved
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2025-04-07
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42 (3, 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, 2)
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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 (1-12); 2 (1-12); 3 (1-10, 11-12); 4 (1-6); 5 (1-4, 5-6); 6 (1-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-4); 16 (1-4); 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 (1-4); 34 (1-4); 35 (1-4); 36 (1-4); 37 (1, 3, 4); 38 (1-4); 39 (1-4); 40 (1-4); 41 (1-4); 42 (1-4); 43 (1-4); 44 (1-4); 45 (1-4); 46 (1, 3, 4); 47 (1-4); 48 (1-4); 49 (1-4); 50 (2, 4); 51 (1-4); 52 (1, 2)
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