Leonardo.

v.1 1968; v.2 1969; v.3 1970; v.4 1971; v.5 1972; v.6 1973; v.7 1974; v.8 1975; v.9 1976; v.10 1977; v.11 1978; v.12 1979; v.13 1980; v.14 1981; v.15 1982; v.16 1983; v.17 1984; v.18 1985; v.19 1986; v.20 1987; v.21 1988; v.22 1989; v.23 1990; v.24 1991; v.25 1992; v.27 1994; v.28 no.1-5; v.29 1996; v.30 1997; v.30 no.4-5; v.31 1998; v.31 no.1-3; v.31 no.4-5; v.32 1999 (Bound without no.3); v.33 2000; v.34 2001; v.35 2002; v.36 2003; v.37 2004; suppl; index v.1-20 1989