1994 no.1-6; 1995 no.2-6; 1995 no.7-12; 1996 no.1-6; 1996 no.7-12; 1998 no.1-6; 1998 no.7-12; 1999 no.1-6; 2000 no.1-6; 2000 no.7-12; 2001 no.1-6; 2001 no.7-12; 2002 no.1-6 Jan.-June; 2002 no.7-12 July-Dec.; 2003 no.1-6 Jan.-June; 2003 no.7-12 July-Dec.; 1997 no.1-6; 1997 no.7-12; 1999 no.7-12; 2000 no.7-11; 2000 no.12; 2003 no.1-3; 2003 no.4-6; 2003 no.10-11; 2003 no.7-9; 2001 no.1; 2002 no.1; 2003 no.12; v.89; v.88; v.87; v.90 no.7-12; v.91 no.1-6; v.91 no.7-12; v.92 no.1-6; v.92 no.7-12; v.93 no.1-6; 1985; 1986; 1987; 1988; 1989:1-6; 1989:8-12; 1990; 1991:1-6; 1991:7-12; 1992:1-6; 1992:7-12; 1993:1-6; 1993:7-12; v.86; v.85; v.90 no.1-6; 2006 no.10-12; 2006 no.4-6; 2005 no.7-9; 2004 no.7-9; 2007 no.1-3; 2005 no.10-12; 2004 no.10-12; 2004 no.4-6; 2007 no.7-9; 2006 no.7-9; 2004 no.1-3; 2006 no.1-3; 2005 no.1-3; 2007 no.10-12; 2005 no.4-6; 2007 no.4-6; 1993:7 (Jul.); 1993:1 (Jan.); 1992:7 (Jul.); 1992:1 (Jan.); 1992:2 (Feb.); 1992:3 (Mar.); 1992:4 (Apr.); 1992:5 (May); 1992:6 (Jun.); 1992:8 (Aug.); 1992:9 (Sep.); 1992:10 (Oct.); 1992:11 (Nov.); 1992:12 (Dec.); 1993:2 (Feb.); 1993:3 (Mar.); 1993:4 (Apr.); 1993:5 (May); 1993:6 (Jun.); 1993:8 (Aug.); 1993:9 (Sep.); 1993:10 (Oct.); 1993:11 (Nov.); 1993:12 (Dec.); 1991; 1990; 1989; 1988; 1987; 1986; 1985; 1984; 1991:7-12; 1994:1-6; 1994:7-12; 1995:1-6; 1995:7-12; 1996:1-6; 1996:7-12; 1997:1-6; 1997:7-12; 1998:1-6; 1998:7-12; 1999:1-6; 1999:7-12; 2000:1-6; 2000:7-12; 2001:1-6; 2001:7-12; 2002:1-6; 2002:7-12; 2003:1-4; 1983:Aug.-Sept. (Incompl.); 1994:6 (Jun.)