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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 47 (186 to 189); 48 (, 190 to 193); 49 (, 194 to 197); 50 (, 198 to 201); 51 (, 202 to 205); 52 (, 206 to 209); 53 (, 210 to 213); 54 (, 214 to 217); 55 (, 218 to 221); 56 (, 222 to 225); 57 (, 226 to 229); 58 (, 230 to 233); 59 (, 234 to 237); 60 (, 238 to 241); 61 (, 242 to 245); 62 (, 246 to 249); 63 (, 250 to 253); 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013
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Internet Archive
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Preserved
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2025-08-08
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1 to 63
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Portico
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Preserved
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2026-02-12
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Preserved : 1965: 15(61)
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Portico
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Preserved
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2026-02-12
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Preserved : 1991: 41(165), 1992: 42(167)
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Portico
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Preserved
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2026-02-12
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Preserved : 1996: 46(182)
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Portico
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Preserved
|
2026-02-12
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Preserved : 2011: 61(243)
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Portico
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Preserved
|
2026-02-12
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Preserved : 2012/2013: 63(250-253), 2013/2014: 64(254-257), 2014/2015: 65(258-261), 2015/2016: 66(262-265), 2016/2017: 67(266-269), 2018: 68(270-273), 2019: 69(274-277), 2020: 70(278-281), 2021: 71(1-4), 2022: 72(1-4), 2023: 73(1-4), 2024: 74(1-4), 2025: 75(1-4), 2026: 76(1)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.47:186-189;vol.48:190-193;vol.49:194-197;vol.50:198-201;vol.51:202-205;vol.52:206-209;vol.53:210-213;vol.54:214-217;vol.55:218-221;vol.56:222-225;vol.57:226-229;vol.58:230-233;vol.59:234-237;vol.60:238-241;vol.61:242-245;vol.62:246-249;vol.63:250-253
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CLOCKSS Archive
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Preserved
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2026-02-09
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47 to 63
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Portico
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Preserved
|
2026-02-12
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Preserved : 1997: 47(186-189), 1998: 48(190-193), 1999: 49(194-197), 2000: 50(198-201), 2001: 51(202-205), 2002: 52(206-209), 2003: 53(210-213), 2004: 54(214-217), 2005: 55(218-221), 2006: 56(222-225), 2007: 57(226-229), 2008: 58(230-233), 2009: 59(234-237), 2010: 60(238-241), 2011: 61(242-245), 2012: 62(246-249), 2013: 63(250-253)
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LOCKSS Archive
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Preserved
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2026-02-09
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58 to 74
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CLOCKSS Archive
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In Progress
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2026-02-09
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58, 66 to 75
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CLOCKSS Archive
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Preserved
|
2026-02-09
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59 to 65
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LOCKSS Archive
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In Progress
|
2026-02-09
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75
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British Library
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Preserved
|
2019-09-18
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Preserved : 64 (254 to 256), 65 (258 to 261), 66 (262; 264 to 265), 68 (272)
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National Digital Preservation Program, China
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Preserved
|
2025-10-23
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Preserved : 7 (28, 278, 279, 281); 64 (254 to 257); 65 (26, 258, 259, 261); 66 (262 to 265); 67 (266 to 269); 68 (27, 271 to 273); 69 (274 to 277); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (1 to 3)
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National Digital Preservation Program, China
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Preserved
|
2025-12-04
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Preserved : 7 (28, 278, 279, 281); 64 (254 to 257); 65 (26, 258, 259, 261); 66 (262 to 265); 67 (266 to 269); 68 (27, 271 to 273); 69 (274 to 277); 71 (1 to 4); 72 (1 to 4); 73 (1 to 4); 74 (1 to 4); 75 (1 to 3)
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National Library of the Netherlands
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Preserved
|
2024-12-15
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|
|
Preserved : 56 (222, 225); 57 (226-229)
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