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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 (5 to 8); 3 (9 to 12); 4 (13 to 16); 5 (17 to 20); 6 (21 to 24); 7 (25 to 28); 8 (29 to 32); 9 (33 to 36); 10 (37); 15 (58 to 60); 16 (61 to 64); 17 (65 to 68); 18 (69 to 72); 19 (73 to 76); 20 (77 to 80); 21 (81 to 84); 22 (85 to 88); 23 (sup1, 89 to 92); 24 (93 to 96); 25 (97 to 100); 26 (1 to 4); 27 (1 to 4); 28 (1 to 4); 29 (1 to 4); 30 (1 to 4); 31 (1, 2, 4); 32 (1 to 4); 37; 38 (1 to 5); 39 (1 to 5); 40 (1 to 5); 41 (1 to 5); 42 (1, 4, 5); 43 (1 to 6); 44 (1 to 6); 45 (1 to 5, 6-7); 46 (1 to 3, 5 to 7); 47 (1 to 6); 48 (3 to 7); 49 (1 to 7); 50 (1 to 7); 51 (1 to 5, 6-7); 52 (1 to 7); 53 (1 to 7); 54 (1 to 7); 55 (1 to 7); 56 (1, 2)
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Internet Archive
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Preserved
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2025-08-08
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1 to 42
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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 56
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LOCKSS Archive
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Preserved
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2026-04-27
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1 to 55
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LOCKSS Archive
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In Progress
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2026-04-27
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56
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Portico
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Preserved
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2026-04-23
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Preserved : 1970/1971: 1(1-4), 1971/1972: 2(5-8), 1972/1973: 3(9-12), 1973/1974: 4(13-16), 1974/1975: 5(17-20), 1975/1976: 6(21-24), 1976/1977: 7(25-28), 1977/1978: 8(29-32), 1978/1979: 9(33-36), 1979/1980: 10(sup1, 37-40), 1980/1981: 11(41-44), 1981/1982: 12(45-48), 1982/1983: 13(49-52), 1983/1984: 14(53-56), 1984/1985: 15(57-60), 1985/1986: 16(61-64), 1986/1987: 17(65-68), 1987/1988: 18(69-72), 1988/1989: 19(73-76), 1989/1990: 20(77-80), 1990/1991: 21(81-84), 1991/1992: 22(85-88), 1992/1993: 23(sup1, 89-92), 1993/1994: 24(93-96), 1994/1995: 25(97-100), 1995/1996: 26(1-4), 1996/1997: 27(1-4), 1997/1998: 28(1-4), 1998/1999: 29(1-4), 1999/2000: 30(1-4), 2000/2001: 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(5), 2009: 39(1-5), 2010: 40(1-5), 2011: 41(1-5), 2012: 42(1-5), 2013: 43(1-6), 2014: 44(1-6), 2015: 45(1-7), 2016: 46(1-7), 2017: 47(1-7), 2018: 48(1-7), 2019: 49(1-7), 2020: 50(1-7), 2021: 51(1-7), 2022: 52(1-7), 2023: 53(1-7), 2024: 54(1-7), 2025: 55(1-7), 2026: 56(1-3)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 3 (1 to 4); 4 (1 to 5); 5 (1 to 7); 27 (2 to 4); 28 (1 to 4); 29 (1 to 4); 31 (1 to 4); 32 (1 to 4); 33 (1 to 4); 34 (1 to 4); 35 (1 to 4); 36 (sup1, 1 to 4); 37 (sup1, 1 to 4); 38 (1 to 5); 39 (1 to 5); 41 (1 to 5); 42 (1 to 5); 43 (1 to 6); 44 (1 to 6); 45 (1 to 5, 6-7); 46 (1 to 7); 47 (1 to 6); 48 (1 to 7); 49 (1 to 7); 51 (1 to 5, 6-7); 52 (1 to 7); 53 (1 to 6); 54 (1 to 7); 55 (1, 2)
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Library of Congress
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Preserved
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2025-04-07
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40 (1 to 5); 41 (1 to 5); 42 (1 to 5); 43 (1 to 6); 44 (1 to 6); 45 (1 to 6-7); 46 (1 to 7); 47 (1 to 6); 48 (1 to 7); 49 (1 to 7); 50 (1 to 7); 51 (1 to 6-7); 52 (1 to 7); 53 (1 to 7); 54 (1 to 7)
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