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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, 2, 4); 5 (1 to 5); 6 (1 to 5); 7 (1 to 5); 8 (1 to 5); 9 (1 to 5); 10 (1 to 5); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 20 (1 to 6); 21 (1 to 6); 22 (1 to 6); 23 (1 to 6); 24 (1 to 9); 25 (1 to 9); 26 (1 to 9); 27 (1 to 9); 28 (1 to 9); 29 (1 to 6); 30 (1 to 6); 31 (1 to 6); 32 (1 to 6); 33 (1 to 6); 34 (1 to 4, 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6); 42 (1 to 6); 43 (1 to 6); 44 (1 to 8); 45 (1 to 8); 46 (1 to 8); 47 (1 to 6); 48 (2 to 4, 5-6, 7-8); 49 (1-2, 3-4, 5-6, 7, 8); 50 (1 to 6, 8); 51 (1 to 8); 52 (1 to 7, 8_suppl); 53 (1 to 8); 54 (1 to 8); 55 (1 to 8); 56 (1 to 8); 57 (1 to 8); 58 (1 to 8); 59 (1 to 8); 60 (1 to 3)
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Portico
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Preserved
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2026-04-09
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Preserved : 1967: 1(1-4), 1968: 2(1-4), 1969: 3(1-4), 1970: 4(1-2, 4), 1971: 5(1-5), 1972: 6(1-5), 1973: 7(1-5), 1974: 8(1-5), 1975: 9(1-5), 1976: 10(1-5), 1977: 11(1-6), 1978: 12(1-6), 1979: 13(1-6), 1980: 14(1-6), 1981: 15(1-6), 1982: 16(1-6), 1983: 17(1-6), 1984: 18(1-6), 1985: 19(1-6), 1986: 20(1-6), 1987: 21(1-6), 1988: 22(1-6), 1989: 23(1-6), 1990: 24(1-9), 1991: 25(1-9), 1992: 26(1-9), 1993: 27(1-9), 1994: 28(1-9), 1995: 29(1-6), 1996: 30(1-6), 1997: 31(1-6), 1998: 32(1-6), 1999: 33(1-6), 2000: 34(1-6), 2001: 35(1-6), 2002: 36(1-6), 2003: 37(1-6), 2004: 38(1-6), 2005: 39(1-6), 2006/2007: 40(1-6), 2007/2008: 41(1-6), 2008/2009: 42(1-6), 2009: 43(1-6), 2010: 44(1-8), 2011: 45(1-8), 2012: 46(1-8), 2013: 47(1-8), 2014: 48(1-8), 2015: 49(3-8), 2016: 50(1-8), 2017: 51(1-8), 2018: 52(1-8, 8, S), 2019: 53(1-8), 2020: 54(1-8), 2021: 55(1-2, 6-8), 2022: 56(1-8), 2023: 57(1-8), 2024: 58(1-8), 2025: 59(1-8), 2026: 60(1-4)
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CLOCKSS Archive
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In Progress
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2026-04-06
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36 to 40, 50 to 60
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LOCKSS Archive
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In Progress
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2026-04-06
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36, 37, 43, 59, 60
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LOCKSS Archive
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Preserved
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2026-04-06
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38 to 42, 44 to 58
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CLOCKSS Archive
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Preserved
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2026-04-06
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41 to 49
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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 (1-4); 2 (1-4); 3 (1-4); 4 (1, 2, 4); 5 (1-5); 6 (1-5); 7 (1-5); 9 (1-5); 10 (1-5); 11 (1-6); 12 (1-6); 13 (1-6); 14 (1-6); 15 (1-6); 16 (1-6); 17 (1-6); 18 (1-6); 19 (1-6); 20 (1-6); 21 (1-6); 22 (1-6); 23 (1-6); 24 (1-9); 25 (1-9); 26 (1-9); 27 (1-9); 28 (1-9); 29 (1-6); 30 (1-6); 31 (1-6); 32 (1-6); 33 (1-6); 34 (1-6); 35 (1-6); 36 (1-6); 37 (1-6); 38 (1-6); 39 (1-6); 40 (1-6); 41 (1-6); 42 (1-6); 43 (1-6); 44 (1-8); 45 (1-6, 8); 46 (2-8); 47 (1-8); 48 (1-4, 5-6, 7-8); 49 (1-2, 5-6, 7, 8); 50 (1-8); 51 (1-8); 52 (1-8); 53 (1-8)
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British Library
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Preserved
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2019-09-18
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Preserved : 48 (1 to 4), 49 (7 to 8), 50 (1 to 8), 51 (1 to 8), 52 (1 to 7)
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