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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 (sup1, 1 to 4); 6 (sup1, 1 to 4); 7 (sup1, 1 to 4); 8 (sup1, 1 to 4); 9 (sup1, 1 to 4); 10 (sup1, 1 to 4); 11 (sup1, 1 to 4); 12 (sup1, 1 to 4); 13 (sup1, 1 to 4); 14 (sup1, 1 to 4); 15 (sup1, 1 to 4); 16 (sup1, 1 to 4); 17 (sup1, 1 to 4); 18 (sup1, 1 to 4); 19 (sup1, 1 to 4); 20 (sup1, 1 to 4); 21 (sup1, 1 to 4); 22 (sup1, 1 to 4); 23 (sup1, 1 to 4); 24 (sup1, 1 to 4); 25 (sup1, 1 to 4); 26 (sup1, 1 to 4); 27 (sup1, 1 to 4); 28 (sup1, 1 to 4); 29 (sup1, 1 to 4); 30 (sup1, 1 to 4); 31 (sup1, 1 to 4); 32 (sup1, 1 to 4); 33 (sup1, 1 to 4); 34 (sup1, 1 to 4); 35 (sup1, 1 to 4); 36 (sup1, 1 to 4); 37 (sup1, 1 to 4); 38 (sup1, 1 to 4); 39 (sup1, 1 to 4); 40 (sup1, 1 to 4); 41 (sup1, 1 to 4); 42 (S1, 1, 2, 3/4); 43 (1 to 4, 5/6); 44 (1, 2, 3-4, 5-6); 45 (1 to 4, 5-6); 46 (1, 3, 4-5, 6); 47 (1, 2-3, 4 to 6); 48 (2, 3-4, 5, 6); 49 (1 to 8); 52 (4, 5, 8); 53 (7-8)
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Internet Archive
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Preserved
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2025-08-08
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to 36
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Portico
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Preserved
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2026-04-02
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Preserved : 1971/1972: 1(1-4), 1972/1973: 2(1-4), 1973/1974: 3(1-4), 1974/1975: 4(1-4), 1975: 5(1-4), 1976: 6(1-4), 1977: 7(1-4), 1978: 8(1-4), 1979: 9(1-4), 1980: 10(1-4), 1981: 11(1-4), 1982: 12(1-4), 1983: 13(1-4), 1984: 14(1-4), 1985: 15(1-4), 1986: 16(1-4), 1987: 17(1-4), 1988: 18(1-4), 1989: 19(1-4), 1990: 20(1-4), 1991: 21(1-4), 1992: 22(1-4), 1993: 23(1-4), 1994: 24(1-4), 1995: 25(1-4), 1996: 26(1-4), 1997: 27(1-4), 1998: 28(1-4), 1999: 29(1-4), 2000: 30(1-4), 2001: 31(1-4), 2002: 32(1-4), 2003: 33(1-4), 2004: 34(1-4), 2005: 35(1-4), 2006: 36(1-4), 2007: 37(1-4), 2008: 38(1-4), 2009: 39(1-4), 2010: 40(1-4), 2011: 41(1, S 1, 2-4), 2012: 42(1, S 1, 2-4), 2013: 43(1-6), 2014: 44(1-6), 2015: 45(1-6), 2016: 46(1-6), 2017: 47(1-6), 2018: 48(1-6), 2019: 49(1-8), 2019/2020: 50(1-8), 2021: 51(1-8), 2022: 52(1-8), 2023: 53(1-5, 7-8), 2024: 54(6-8)
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CLOCKSS Archive
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Preserved
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2026-04-06
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50
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Portico
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Preserved
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2026-04-02
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Preserved : 2006: 36(1-5), 2007: 37(1-4), 2008: 38(1-4), 2007/2009: 39(1-5), 2010: 40(1-4)
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Portico
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Preserved
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2026-04-02
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Preserved : 2011: 41(1-5), 2012: 42(1-4)
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CLOCKSS Archive
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Preserved
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2026-04-06
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ahead-of-print to 49
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LOCKSS Archive
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Preserved
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2026-04-06
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1 to 49
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Portico
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Preserved
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2026-04-02
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Preserved : 1972/1973: 2(1-3), 1973/1974: 3(1-3), 1974/1975: 4(1-3), 1975: 5(1-3), 1976: 6(1-3), 1977: 7(1-3), 1978: 8(1-3), 1979: 9(1-3), 1980: 10(1-3), 1981: 11(1-3), 1982: 12(1-3), 1983: 13(1-3), 1984: 14(1-3), 1985: 15(1-4), 1986: 16(1-4), 1987: 17(1-4), 1988: 18(1-4), 1989: 19(1-4), 1990: 20(1-4), 1991: 21(1-4), 1992: 22(1-4), 1993: 23(1-4), 1994: 24(1-4), 1995: 25(1-4), 1996: 26(1-4), 1997: 27(1-4), 1998: 28(1-4), 1999: 29(1-4), 2000: 30(1-4), 2001: 31(1-4), 2002: 32(1-4), 2003: 33(1-4), 2004: 34(1-4), 2005: 35(1-4), 2006: 36(1-4), 2007: 37(1-4), 2008: 38(1-4), 2009: 39(1-4), 2010: 40(1-4), 2011: 41(1-4), 2012: 42(1-4), 2013: 43(1-6), 2014: 44(1-6), 2015: 45(1-6), 2016: 46(1-6), 2017: 47(1-6), 2018: 48(1-6), 2019: 49(1-8)
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LOCKSS Archive
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Preserved
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2026-04-06
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36 to 42
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Library of Congress
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Preserved
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2025-04-07
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40 (sup1, 1 to 4); 41 (sup1, 1 to 4); 42 (sup1, 1 to 3-4); 43 (1 to 5-6); 44 (1 to 3-4, 5-6); 45 (1 to 5-6); 46 (1 to 4-5, 6); 47 (1, 2-3, 4 to 6); 48 (1 to 3-4, 5, 6); 49 (1 to 8)
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