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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 9; 10 (7); 13; 15 (1 to 9, 10-11, 12); 16 (, 1 to 12); 17 (, 1 to 12); 18 (, 1 to 12); 19 (, 1 to 12); 20 (, 1 to 12); 21 (, 1 to 12); 22 (, 1 to 12); 23 (, 1 to 12); 24 (, 1 to 12); 25 (, 1 to 12); 26 (, 1 to 12); 27 (, 1 to 12); 28 (, 1-2, 3, 4-5, 6 to 12); 29 (, 1 to 6, 7-8, 9 to 12); 30 (, 1 to 18); 31 (, 1 to 18); 32 (, 1 to 13, 14-15, 16, 17-18); 33 (, 1 to 3, 4-5, 6, 7-8, 9, 10, 11-12, 13 to 16, 17-18); 34 (, 1 to 7, 8-9, 10, 11, 12-13, 14, 15, 16-17, 18); 35 (, 1 to 5, 6-7, 8 to 10, 11-12, 13, 14, 16 to 18); 36 (, 1 to 3, 4-5, 6 to 10, 11-12, 13-14, 15-16, 17, 18); 37 (, 1-2, 3-4, 5 to 11, 12-13, 14 to 18); 38 (, 1, 2-3, 4 to 11, 12-13, 14, 15, 16-18); 39 (, 1-2, 3-4, 5-6, 7-8, 9 to 16, 17-18); 40 (, 1, 2-4, 5 to 13, 14-15, 16 to 18); 41 (, 1, 2-3, 4, 5, 6-7, 8 to 12); 42 (, 1 to 12); 43 (, 1-2, 3 to 14); 44 (, 1-3, 4 to 16); 45 (, 1 to 15); 46 (, 1 to 7, 8-9, 10, 11-12, 13 to 16); 47 (, 1, 2-3, 4 to 6, 7-8, 9, 10, 11-12, 13 to 16); 48 (, 1-3, 4, 5, 6-7, 8, 9-10, 11, 12-13, 14, 15-16); 49 (, 1-2, 3, 4); 50 (, 1-2, 3, 4); 51 (, 1, 2, 3-4); 52 (, 1, 2, 3-4); 53 (, 1-2, 3, 4); 54 (, 1, 2, 3-4); 55 (, 1, 2, 3-4); 56 (, 1-2, 3, 4); 57 (, 2); 58 (, 1); 59 (, 1, 2); 60 (, 1, 2); 61 (, 1, 2); 62 (, 1, 2); 63 (, 1, 2); 64 (, 1, 2); 65 (, 1, 2); 66 (, 1, 2); 67 (, 1); 68 (, 1, 2); 69; 70; 71; 72; 73; 74; 75; 76; 77; 78; 79; 80; 81; 82; 83; 84; 85; 86; 87; 88; 89; 90; 91; 92; 93; 94; 95; 96; 97; 98; 99; 100; 101; 102; 103; 104; 105; 106; 107; 108; 109; 110; 111; 112; 113; 114; 115; 116; 117; 118; 119; 120; 121; 128; 130; 131; 132; 133; 134; 135; 136; 137; 138; 139; 140; 141; 142; 143; 144; 145; 146; 147; 148; 149; 150; 151; 152; 153; 154; 155; 156; 157; 158; 159; 160; 161; 162; 163; 164; 165; 166; 167; 169; 170; 171; 172; 173; 174; 175; 176; 177; 178; 179; 180; 181; 182; 183; 184; 185; 1972; 1973; 1976; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Portico
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Preserved
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2026-02-12
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Preserved : 1972: 9
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Portico
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Preserved
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2026-02-12
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Preserved : 1973: 10(7, )
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Portico
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Preserved
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2026-02-12
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Preserved : 1976: 13
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Portico
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Preserved
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2026-02-12
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Preserved : 1978: 15(1-12, ), 1979: 16(1, Index 1, 2-12), 1980: 17(1, Index 1, 2-12), 1981: 18(1-12), 1982: 19(1-12), 1983: 20(1-12), 1984: 21(1, Index 1, 2-12), 1985: 22(1-12), 1986: 23(1-12), 1987: 24(1-12), 1988: 25(1-12), 1989: 26(1-12), 1990: 27(1, Index 1, 2-12), 1991: 28(1-12), 1992: 29(1-12), 1993: 30(1, S 1, 2-18, ), 1994: 31(1-18), 1995: 32(1-18), 1996: 33(1-18), 1997: 34(1-18), 1998: 35(1-18), 1999: 36(1-18), 2000: 37(1-18), 2001/2002: 38(1-18), 2002/2003: 39(1-18), 2003/2004: 40(1-18), 2004: 41(1-12), 2005: 42(1-12), 2006: 43(1-14), 2007: 44(1-16), 2008: 45(1-16), 2008/2009: 46(1-16), 2009/2010: 47(1-16), 2010/2011: 48(1-16), 2011/2012: 49(1-4), 2012: 50(1-4), 2012: 51(1-4), 2012: 52(1-4), 2013: 53(1-4), 2013: 54(1-4), 2013: 55(1-4), 2013: 56(1-4), 2014: 57(1-2), 2014: 58(1-2), 2014: 59(1-2), 2014: 60(1-2), 2014: 61(1-2), 2014: 62(1-2), 2015: 63(1-2), 2015: 64(1-2), 2015: 65(1-2), 2015: 66(1-2), 2015: 67(1-2), 2015: 68(1-2), 2016: 69, 2016: 70, 2016: 71, 2016: 72(C), 2016: 73(C), 2016: 74(C), 2016: 75(C), 2016: 76(C), 2016: 77, 2016: 78, 2016: 79, 2016: 80, 2017: 81, 2017: 82, 2017: 83, 2017: 84, 2017: 85, 2017: 86, 2017: 87, 2017: 88, 2017: 89, 2017: 90, 2017: 91, 2017: 92, 2018: 93, 2018: 94, 2018: 95, 2018: 96, 2018: 97, 2018: 98, 2018: 99, 2018: 100, 2018: 101, 2018: 102, 2018: 103, 2018: 104, 2019: 105, 2019: 106, 2019: 107, 2019: 108, 2019: 109, 2019: 110, 2019: 111, 2019: 112, 2019: 113, 2019: 114, 2019: 115, 2019: 116, 2020: 117, 2020: 118, 2020: 119, 2020: 120, 2020: 121, 2020: 122, 2020: 123, 2020: 124, 2020: 125, 2020: 126, 2020: 127, 2020: 128, 2021: 129, 2021: 130, 2021: 131, 2021: 132, 2021: 133, 2021: 134, 2021: 135, 2021: 136, 2021: 137, 2021: 138, 2021: 139, 2021: 140, 2022: 141, 2022: 142, 2022: 143, 2022: 144, 2022: 145, 2022: 146, 2022: 147, 2022: 148, 2022: 149, 2022: 150, 2022: 151, 2022: 152, 2023: 153, 2023: 154, 2023: 155, 2023: 156, 2023: 157, 2023: 158, 2023: 159, 2023: 160, 2023: 161, 2023: 162, 2023: 163, 2023: 164, 2024: 165, 2024: 166, 2024: 167, 2024: 168, 2024: 169, 2024: 170, 2024: 171, 2024: 172, 2024: 173, 2024: 174, 2024: 175, 2024: 176, 2025: 177, 2025: 178, 2025: 179, 2025: 180, 2025: 181, 2025: 182, 2025: 183, 2025: 184, 2025: 185, 2025: 186, 2025: 187, 2025: 188, 2026: 189, 2026: 190
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CLOCKSS Archive
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Preserved
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2026-02-09
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16 to 189
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Internet Archive
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Preserved
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2025-08-08
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1 to 34
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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 : 16 (I1, 1-12); 17 (I1, 1-12); 18 (1-12); 19 (1-12); 20 (1-12); 21 (I1, 1-12); 22 (1-12); 23 (1-12); 24 (1-12); 25 (1-12); 26 (1-12); 27 (I1, 1-12); 28 (1-2, 3, 4-5, 6-12); 29 (1-6, 7-8, 9-12); 30 (S1, 1-18); 31 (1-18); 32 (1-13, 14-15, 16, 17-18); 33 (1-3, 4-5, 6, 7-8, 9, 10, 11-12, 13-16, 17-18); 34 (1-7, 8-9, 10, 11, 12-13, 14, 15, 16-17, 18); 35 (1-5, 6-7, 8-10, 11-12, 13, 14-15, 16-18); 36 (1-3, 4-5, 6-10, 11-12, 13-14, 15-16, 17, 18); 37 (1-2, 3-4, 5-11, 12-13, 14-18); 38 (1, 2-3, 4-11, 12-13, 14, 15, 16-18); 39 (1-2, 3-4, 5-6, 7-8, 9-16, 17-18); 40 (1, 2-4, 5-13, 14-15, 16-18); 41 (1, 2-3, 4, 5, 6-7, 8-12); 42 (1-12); 43 (1-2, 3-14); 44 (1-3, 4-16); 45 (1-16); 46 (1-7, 8-9, 10, 11-12, 13-16); 47 (1, 2-3, 4-6, 7-8, 9, 10, 11-12, 13-16); 48 (1-3, 4, 5, 6-7, 8, 9-10, 11, 12-13, 14, 15-16); 49 (1-2, 3, 4); 50 (1-2, 3, 4); 51 (1, 2, 3-4); 52 (1, 2, 3-4); 53 (4); 54 (1, 2, 3-4); 55 (1, 2, 3-4); 56 (1-2, 3, 4); 57 (1, 2); 58 (1, 2); 59 (1, 2); 60 (1, 2); 61 (1, 2); 62 (1, 2, 11); 63 (1, 2); 64 (1, 2); 65 (1, 2); 66 (1, 2); 67 (1, 2PA); 68 (1, 2PA); 69 (C); 70; 71; 72; 73; 74; 75; 76; 77; 78; 79; 80; 81; 82; 83; 84; 86; 87; 88; 89; 90; 91; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 108; 109; 110; 112; 113; 158
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