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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1, 2); 2 (, 1, 2, 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1, 2); 15 (, 1 to 3); 16 (, 1 to 3); 17 (, 1 to 3); 18 (, 1 to 3); 19 (, 1‐3); 20 (, 1‐3); 21 (, 1‐3); 22 (, 1‐3); 23 (, 1 to 3); 24 (, 1 to 4); 25 (, 1 to 4); 26 (, 1 to 4); 36 (, 1 to 4); 37 (, 1 to 4); 38 (, 1 to 4); 39 (, 1 to 4); 40 (, 1 to 4); 41 (, 1 to 5); 42 (, 1 to 5); 43 (, 1 to 5); 44 (, 1 to 5); 45 (, 1 to 5); 46 (, 1 to 5); 47 (, 1 to 5); 48 (, 1 to 5); 49 (, 1 to 5); 50 (, 1 to 5); 51 (, 1 to 5); 52 (, 1 to 5); 53 (, 1 to 5); 54 (, 1 to 5); 1921; 1922; 1926; 1927; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1945; 1946; 1947; 1948; 1949; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.36:1-4;vol.37:1-4;vol.38:1-4;vol.39:1-4;vol.40:1-4;vol.41:1-5;vol.42:1-5;vol.43:1-5;vol.44:1-5;vol.45:1-5,S1;vol.46:1-5;vol.47:1-5;vol.48:1-5;vol.49:1-5;vol.50:1-5;vol.51:1-5;vol.52:1-5;vol.53:1-5;vol.54:1-5
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Portico
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Preserved
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2026-02-12
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Preserved : 1921/1922: 1(1-2), 1926/1927: 2(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1929: 2(4), 1930/1931/1932/1933: 3(1-4), 1934/1935/1936/1937: 4(1-4), 1938/1939/1940: 5(1-4), 1941/1942/1943/1945: 6(1-4), 1946/1947/1948/1949: 7(1-4), 1949/1951/1952/1953: 8(1-4), 1954/1955/1956/1957: 9(1-4), 1958/1959/1960/1961: 10(1-4), 1962/1963/1964/1965: 11(1-4), 1966/1967/1968/1969: 12(1-4), 1970/1971/1972/1973: 13(1-4), 1974/1975: 14(1-2)
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Portico
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Preserved
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2026-02-12
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Preserved : 1976/1977: 15(1-3), 1977/1978: 16(1-3), 1978: 17(1-3), 1979: 18(1-3), 1980: 19(1-3), 1981: 20(1-3), 1982: 21(1-3), 1983: 22(1-3), 1984: 23(1-3), 1985: 24(1-4), 1986: 25(1-4), 1987: 26(1-4), 1988: 27(1-4), 1989: 28(1-4), 1990: 29(1-4), 1991: 30(1-4), 1992: 31(1-4), 1993: 32(1-4), 1994: 33(1-4), 1995: 34(1-4), 1996: 35(1-4), 1997: 36(1-4), 1998: 37(1-4), 1999: 38(1-4), 2000: 39(1-4), 2001: 40(1-4), 2002: 41(1-5), 2003: 42(1-5), 2004: 43(1-5), 2005: 44(1-5), 2006: 45(1-5), 2007: 46(1-5), 2008: 47(1-5), 2009: 48(1-5), 2010: 49(1-5), 2011: 50(1-5), 2012: 51(1-5), 2013: 52(1-5), 2014: 53(1-5), 2015: 54(1-5)
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CLOCKSS Archive
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Preserved
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2026-02-09
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30 to 54
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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 : 45 (S1, 1-5); 46 (1-5)
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