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Scholars Portal
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Preserved
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2026-03-19
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Preserved : 3; 7; 9; 10; 12-13; 14-15; 16-17; 18; 20-21; 22-23; 24-25; 26-28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40
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Portico
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Preserved
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2026-04-16
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Preserved : 1980: 1(1), 1981: 2(1), 1982: 3(1), 1983: 4(1), 1984: 5(1), 1985: 6(1), 1986: 7(1), 1987: 8(1), 1988: 9(1), 1989: 10(1), 1990: 11(1), 1991: 12(1), 1991: 12-13(1), 1993: 14-15(1), 1993: 14(1), 1995: 16(1), 1995: 16-17(1)
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Portico
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Preserved
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2026-04-16
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Preserved : 1997: 18(1), 1998: 19(1), 1999: 20-21(1), 1999: 20(1), 2001: 22-23(1), 2001: 22(1)
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Portico
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Preserved
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2026-04-16
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Preserved : 2003: 24-25(1), 2007: 26-28(1), 2008: 29(1), 2009: 30(1), 2010: 31(1)
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Portico
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Preserved
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2026-04-16
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Preserved : 2012: 33(1), 2013: 34(1), 2014: 35(1), 2015: 36(1), 2016: 37(1), 2017: 38(1), 2018: 39(1), 2019: 40(1), 2020: 41(1-2), 2020/2021: 42(1-2), 2022: 43(1-2), 2023: 44(1-2), 2024/2025: 45(1-2), 2025: 46(1)
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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); 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; 12; 14; 16; 18; 19; 20; 22; 26; 29; 30; 31; 32
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Library of Congress
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Preserved
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2025-04-07
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12-13 (1); 14-15 (1); 16-17 (1); 20-21 (1); 22-23 (1); 24-25 (1); 26-28 (1); 40 (1); 41 (1, 2); 42 (1, 2); 43 (1, 2); 44 (1, 2); 45 (1)
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