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Scholars Portal
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Preserved
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2026-03-19
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Preserved : I (1 to 4); II (1 to 4); III (1 to 4); IV (1 to 4); V (1 to 4); VI (1 to 4); VII (1 to 4); VIII (1 to 4); IX (1 to 4); X (1 to 4); XI (1 to 4); XII (1 to 4); XIII (1 to 4); XIV (1 to 4); XV (1 to 4); XVI (1 to 4); XVII (1 to 4); XVIII (1 to 4); XIX (1 to 4); XX (1 to 4); XXI (1 to 4); XXII (1 to 4); XXIII (1 to 4); XXIV (1 to 4); XXV (1 to 4); XXVI (1 to 4); XXVII (1 to 4); XXVIII (1, 2, 4); XXIX (1 to 4); XXX (1 to 4); XXXI (1 to 4); XXXII (1 to 4); XXXIII (1 to 4); XXXIV (1 to 4); XXXV (1 to 4); XXXVI (1 to 4); XXXVII (1 to 4); XXXVIII (1 to 4); XXXIX (1 to 4); XL (1 to 4); XLI (1 to 4); XLII (1 to 4); XLIII (1 to 4); XLIV (1 to 4); XLV (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 to 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1, 2, 4); 69 (1); 73 (2 to 4); 74 (1); 75 (3, 4)
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Internet Archive
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Preserved
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2025-08-08
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1 to 65
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Portico
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Preserved
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2026-04-09
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Preserved : 1978: XXVIII(3)
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Portico
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Preserved
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2026-04-09
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Preserved : 1992/1997: XLII(1-4), 1993: XLIII(1-4), 1993/1994: XLIV(1-4), 1995: XLV(1-4), 1996: XLVI(1-4), 1997: XLVII(1-4), 1998: XLVIII(1-4), 1999: XLIX(1-4), 2000: 50(1-4), 2001: 51(1-4), 2002: 52(1-4), 2003: 53(1-4), 2004: 54(1-4), 2005: 55(1-4), 2006: 56(1-4), 2007: 57(1-4), 2008: 58(1-4), 2009: 59(1-4), 2010: 60(1-4), 2011: 61(1-4), 2012: 62(1-4), 2013: 63(1-4), 2014: 64(1-4), 2015: 65(1-4), 2016: 66(1-4), 2017: 67(1-4), 2018: 68(1-4), 2019: 69(1-4), 2020: 70(1-4), 2021: 71(1-4), 2022: 72(1-4), 2023: 73(1-4), 2024: 74(1-4), 2025: 75(1-4)
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LOCKSS Archive
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Preserved
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2026-04-06
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55 to 67
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CLOCKSS Archive
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Preserved
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2026-04-06
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58 to 67
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Portico
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Preserved
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2026-04-09
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Preserved : 2006: 56(1-4), 2007: 57(1-4)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 6 (2 to 4); 7 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 72; 73 (1 to 4); 74 (1 to 4); 75 (1, 2)
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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 : 6 (2 to 4); 7 (1 to 4); 57 (1 to 4); 58 (1 to 4); 59 (1 to 4); 61 (1 to 4); 62 (1 to 4); 63 (1 to 4); 64 (1 to 4); 65 (1 to 4); 66 (1 to 4); 67 (1 to 4); 68 (1 to 4); 69 (1 to 4); 72; 73 (1 to 4); 74 (1 to 4); 75 (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 : I (1-4); II (1-4); III (1-4); IV (1-4); V (1-4); VI (1-4); VII (1-4); VIII (1-4); IX (1-4); X (1-4); XI (1-4); XII (1-4); XIII (1-4); XIV (1-4); XV (1-4); XVI (1-4); XVII (1-4); XVIII (1-4); XIX (1-4); XX (1-4); XXI (1, 3, 4); XXII (1-4); XXIII (1-4); XXIV (2-4); XXV (1-4); XXVI (1-4); XXVII (1-4); XXVIII (1, 2, 4); XXIX (1-4); XXX (2-4); XXXI (1-4); XXXII (1-4); XXXIII (1-4); XXXIV (1-4); XXXV (1, 3, 4); XXXVI (1-4); XXXVII (1-4); XXXVIII (1-4); XXXIX (1-4); XXXX (1, 2); XL (3, 4); XLI (1-4); XLII (1-4); XLIII (1-4); XLIV (1-4); XLV (1-4)
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British Library
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Preserved
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2019-09-18
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Preserved : 64 (1 to 4), 65 (1 to 4), 66 (1; 3 to 4), 67 (1 to 2; 4), 68 (1 to 4)
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