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