ISSN Record 1944-8007

Preserved : 1974: 1(1-8), 1975: 2(1-12), 1976: 3(1-12), 1977: 4(1-12), 1978: 5(1-12), 1979: 6(1-12), 1980: 7(1-12), 1981: 8(1-12), 1982: 9(1-12), 1983: 10(1-12), 1984: 11(1-12), 1985: 12(1-12), 1986: 13(1-13), 1987: 14(1-12), 1988: 15(1-13), 1989: 16(1-12), 1990: 17(1-13), 1991: 18(1-12), 1992: 19(1-24), 1993: 20(1-24), 1994: 21(1-25), 1995: 22(1-24), 1996: 23(1-25), 1997: 24(1-24), 1998: 25(1-24), 1999: 26(1-24), 2000: 27(1-24), 2001: 28(1-24), 2002: 29(1-24), 2003/2004: 30(1-24), 2004: 31(1-24), 2005: 32(1-24), 2006: 33(1-24), 2007: 34(1-24), 2008: 35(1-24), 2009: 36(1-24, ), 2010: 37(2-24, ), 2011: 38(1-24, ), 2012: 39(1-18, )

1 to 53

Preserved : 1974: 1(1-8), 1975: 2(1-12), 1976: 3(1-12), 1977: 4(1-12), 1978: 5(1-12), 1979: 6(1-12), 1980: 7(1-12), 1981: 8(1-12), 1982: 9(1-12), 1983: 10(1-12), 1984: 11(1-12), 1985: 12(1-12), 1986: 13(1-13), 1987: 14(1-12), 1988: 15(1-13), 1989: 16(1-12), 1990: 17(1-13), 1991: 18(1-12), 1992: 19(1-24), 1993: 20(1-24), 1994: 21(1-25), 1995: 22(1-24), 1996: 23(1-25), 1997: 24(1-24), 1998: 25(1-24), 1999: 26(1-24), 2000: 27(1-24), 2001: 28(1-24), 2002: 29(1-24), 2003: 30(1-24), 2004: 31(1-24), 2005: 32(1-24), 2006: 33(1-24), 2007: 34(1-24), 2008: 35(1-24), 2009: 36(1-24), 2010: 37(1-24), 2011: 38(1-24), 2012: 39(1-24), 2013: 40(1-24), 2014: 41(1-24), 2015: 42(1-24), 2016: 43(1-24), 2017: 44(1-24), 2018: 45(1-24), 2019: 46(1-24), 2020: 47(1-24), 2021: 48(1-24), 2022: 49(1-24), 2023: 50(1-24), 2024: 51(1-24), 2025: 52(1-24), 2026: 53(1-3)

Preserved : 3 (1 to 9, 11 to 19, 21 to 24); 4 (1 to 9, 11 to 19, 21 to 24); 5 (1 to 9, 11 to 19, 21 to 24); 24 (1 to 9, 11 to 19, 21 to 24); 25 (1 to 9, 11 to 19, 21 to 24); 26 (1 to 9, 11 to 19, 21 to 24); 27 (1 to 9, 11 to 19, 21 to 24); 28 (1 to 9, 11 to 19, 21 to 24); 29 (1 to 9, 11 to 19, 21 to 24); 31 (1 to 9, 11 to 19, 21 to 24); 32 (1 to 9, 11 to 19, 21 to 24); 33 (1 to 9, 11 to 19, 21 to 24); 34 (1 to 9, 11 to 19, 21 to 24); 35 (1 to 9, 11 to 19, 21 to 24); 36 (1 to 9, 11 to 19, 21 to 24); 37 (1 to 9, 11 to 19, 21 to 24); 38 (1 to 9, 11 to 19, 21 to 24); 39 (1 to 9, 11 to 19, 21 to 24); 41 (1 to 9, 11 to 19, 21 to 24); 42 (1 to 9, 11 to 19, 21 to 24); 43 (1 to 9, 11 to 19, 21 to 24); 44 (1 to 9, 11 to 19, 21 to 24); 45 (1 to 9, 11 to 19, 21 to 24); 46 (1 to 9, 11 to 16, 17-18, 19, 21 to 24); 47 (1 to 9, 11 to 19, 21 to 24); 48 (1 to 9, 11 to 19, 21 to 24); 49 (1 to 9, 11 to 19, 21 to 24); 51 (1 to 9, 11 to 19, 21 to 24); 52 (1 to 9, 11 to 18)

Preserved : 3 (1 to 9, 11 to 19, 21 to 24); 4 (1 to 9, 11 to 19, 21 to 24); 5 (1 to 9, 11 to 19, 21 to 24); 24 (1 to 9, 11 to 19, 21 to 24); 25 (1 to 9, 11 to 19, 21 to 24); 26 (1 to 9, 11 to 19, 21 to 24); 27 (1 to 9, 11 to 19, 21 to 24); 28 (1 to 9, 11 to 19, 21 to 24); 29 (1 to 9, 11 to 19, 21 to 24); 31 (1 to 9, 11 to 19, 21 to 24); 32 (1 to 9, 11 to 19, 21 to 24); 33 (1 to 9, 11 to 19, 21 to 24); 34 (1 to 9, 11 to 19, 21 to 24); 35 (1 to 9, 11 to 19, 21 to 24); 36 (1 to 9, 11 to 19, 21 to 24); 37 (1 to 9, 11 to 19, 21 to 24); 38 (1 to 9, 11 to 19, 21 to 24); 39 (1 to 9, 11 to 19, 21 to 24); 41 (1 to 9, 11 to 19, 21 to 24); 42 (1 to 9, 11 to 19, 21 to 24); 43 (1 to 9, 11 to 19, 21 to 24); 44 (1 to 9, 11 to 19, 21 to 24); 45 (1 to 9, 11 to 19, 21 to 24); 46 (1 to 9, 11 to 16, 17-18, 19, 21 to 24); 47 (1 to 9, 11 to 19, 21 to 24); 48 (1 to 9, 11 to 19, 21 to 24); 49 (1 to 9, 11 to 19, 21 to 24); 51 (1 to 9, 11 to 19, 21 to 24); 52 (1 to 9, 11 to 19)

17 (11); 19 (1); 22 (13); 23 (16); 27 (21); 29 (8); 30 (4, 20); 33 (11); 35 (10); 38 (9, 15); 40 (8, 18); 41 (23); 42 (2, 5, 11, 14, 16, 18, 19, 23); 43 (1 to 24); 44 (1 to 5, 8 to 24); 45 (1 to 24); 46 (1 to 17-18, 19 to 24); 47 (1 to 24); 48 (1 to 24); 49 (1 to 24); 50 (1, 2, 5 to 7, 10, 13 to 21, 23, 24); 51 (3 to 8)