Omega :

v.1 1970; v.1-2 1970-1971; v.3 1972; v.4 1973; v.5-6 1974-1975; v.7-8 1976-1977; v.10 1979; v.9-10 1978/1979-1979/1980; v.10 1979-80; v.11 no.2 1980; v.11 1980-81; v.11 no.4 1980/1981; v.11 no.3 1981; v.11 no.1-3 1980/1981, v.12 no.1,3-4 1981/1982; v.12 1981-82; v.12 no.2 1981/1982; v.13 1982/1983 has missing pages; v.13 no.2 (pgs.127-158) 1982/1983; v.14 1983/1984; v.15 1984/1985; v.16 1985-86; v.16 1985/1986; v.17 1986/1987; v.18 1987-88; v.18-19 1987/1988-1988/1989; v.19 1988-89; v.20 1989-90; v.20-21 1989-1990; v.21 1990; v.22 1990-91; v.22-23 1990-1991; v.23 1991; v.24 1991-1992; v.25 1992; v.26 1992-1993; v.26 1993; v.27 1993; v.28 1993-1994; v.28 1994; v.29 1994; v.30 1994-1995; v.30 1995; v.31 1995; v.32 1995-1996; v.32 1996; v.33 1996; v.34 1996-1997; v.35 1997; v.36 1997-1998; v.37 1998; v.38 1998-1999; v.39 1999; v.40 1999-2000; v.41 2000; v.42 2000-2001; v.42 2001; v.43 2001; v.44 2001-2002; v.45 2002; v.46 2002; v.46 2002-2003; v.47 2003; v.48 2003; v.48:no.1-4(2004); v.49 2004; v.49:no.1-4(2004); v.50 2005; v.50:no.1-4(2004-05); v.51 2005; v.51:no.1-4(2005); v.52 2005-06; v.52:no.1-4(2005-06); v.53 2006; v.53:no.1-4(2006); v.54 2007; v.54:no.1-4(2006-07); v.55 2007; v.55:no.1-4(2007); v.57 2008