ISSN Record 1421-9972

Preserved : 1 (1, 2, 3-4); 2 (, 1 to 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 (, 1-3, 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1, 2-3, 4); 15 (, 1, 2-3, 4); 16 (, 1 to 4); 17 (, 1 to 3, 4-6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1, 2-3, 4 to 6); 21 (, 1 to 6); 22 (, 1 to 3, 4-5, 6); 23 (, 1, 2-3, 4 to 6); 24 (, 1 to 4, 5-6); 25 (, 1-2, 3 to 6); 26 (, 1 to 6); 27 (, 1 to 6); 28 (, 1 to 3, 4-5, 6); 29 (, 1 to 4); 30 (, 1 to 4); 31 (, 1 to 4); 32 (, 1 to 4); 33 (, 1 to 6); 34 (, 1 to 6); 35 (, 1-2, 3-4, 5, 6); 36 (, 1 to 6); 37 (, 1, 2, 3-4, 5-6); 38 (, 1, 2-4, 5-6); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1, 2-3, 4-5, 6); 42 (, 1 to 6); 43 (, 1 to 6); 44 (, 1-2, 3-4, 5, 6); 45 (, 1 to 6); 46 (, 1 to 6); 47 (, 1 to 6); 48 (, 1 to 6); 49 (, 1, 2, 3-4, 5, 6); 50 (, 1 to 6); 51 (, 1-2, 3, 4-5, 6); 52 (, 1-3, 4 to 6); 53 (, 1 to 6); 54 (, 1 to 6); 55 (, 1 to 6); 56 (, 1 to 6); 57 (, 1 to 4, 5-6); 58 (, 1 to 6); 59 (, 1 to 6); 60 (, 1 to 6); 61 (, 1 to 6); 62 (, 1-2, 3 to 6); 63 (, 1 to 6); 64 (, 1 to 6); 65 (, 1 to 4); 66 (, 1-2, 3, 4-5, 6); 67 (, 1 to 6); 68 (, 1 to 6); 69 (, 1-2, 3, 4, 5-6); 70 (, 1, 2, 3-4); 71 (, 2-3, 4, 5-6); 72 (, 1, 2, 4 to 6); 73 (, 1 to 6); 74 (, 1 to 6); 75 (, 1 to 6); 76 (, 1 to 6); 77 (, 1 to 4); 1949; 1950; 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; 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

18 to 26

Preserved : 1949: 1(1-4), 1950: 2(1-4), 1951: 3(1-4), 1952: 4(1-4), 1953: 5(1-4), 1954: 6(1-4), 1955: 7(1-4), 1956: 8(1-4), 1957: 9(1-4), 1958: 10(1-4), 1959: 11(1-4), 1960: 12(1-4), 1961: 13(1-4), 1962: 14(1-4), 1963: 15(1-4), 1964: 16(1-4), 1965: 17(1-6), 1966: 18(1-6), 1967: 19(1-6), 1968: 20(1-6), 1969: 21(1-6), 1970: 22(1-6), 1971: 23(1-6), 1972: 24(1-6), 1973: 25(1-6), 1974: 26(1-6), 1975: 27(1-6), 1976: 28(1-6), 1977: 29(1-4), 1978: 30(1-4), 1979: 31(1-4), 1980: 32(1-4), 1981: 33(1-6), 1982: 34(1-6), 1983: 35(1-6), 1984: 36(1-6), 1985: 37(1-6), 1986: 38(1-6), 1987: 39(1-6), 1988: 40(1-6), 1989: 41(1-6), 1990: 42(1-6), 1991: 43(1-6), 1992: 44(1-6), 1993: 45(1-6), 1994: 46(1-6), 1995: 47(1-6), 1996: 48(1-6), 1997: 49(1-6), 1998: 50(1-6), 1999: 51(1-6), 2000: 52(1-6), 2001: 53(1-6), 2002: 54(1-6), 2003: 55(1-6), 2004: 56(1-6), 2005: 57(1-6), 2006: 58(1-6), 2007: 59(1-6), 2008: 60(1-6), 2009: 61(1-6), 2010: 62(1-6), 2011: 63(1-6), 2012: 64(1-6), 2013: 65(1-6), 2014: 66(1-2, 1-5, 4-6), 2015: 67(1-6), 2016: 68(1-6), 2017: 69(1-6), 2018: 70(1-4), 2019: 71(1-6), 2020: 72(1-6), 2021: 73(1-6), 2022: 74(1-6), 2023: 75(1-6), 2024: 76(1-6), 2025: 77(1-6)

58 (1 to 6); 59 (1 to 6); 60 (1 to 6); 61 (1 to 6); 62 (1-2, 3 to 6); 63 (1 to 6); 64 (1 to 6); 65 (1 to 6); 66 (1-2, 3, 4-5, 6); 67 (1 to 6); 68 (1 to 6); 69 (1-2, 3 to 5-6); 70 (1 to 3-4); 71 (1, 2-3, 4, 5-6)