Surfer.

v.21:1-6 1980; v.24, no.10; v.26:4 1985; v.27:7-12 1986; v.27:1-6 1986; v.28:1-6 1987; v.28:7-12 1987; v.29:7-12 1988; v.29:1-6 1988; v.30:1-6 1989; v.31:7-12 1990; v.31:1-6 1990; v.32:1-6 1991; v.32:7-12 1991; v.33:7-12 1992; v.33:1-6 1992; v.34:1-6 1993; v.35:1-6 1994; v.35:7-12 1994; v.36:1-6 1995; v.36:7-12 1995; v.37:1-6 1996; v.37:10 1996; v.37:11-12 1996; v.37:7-9 1996; v.38:1-6 1997; v.38:10 1997; v.39:1-6 1998; v.39:7-9,11-12 1998; v.40:1-6 1999; v.40:7-12 1999; v.41:1-6 2000; v.41:7-12 2000; v.43:1-6 2002; v.44:1-6 2003; v.44:7-12 2003; v.44:8 2003; v.45:1-6 2004; v.46:7-12 2005; v.47:4-6 2006; v.48:1-3 2007