Frequenz.

Bd.1-2 1947-1948; Bd.3-4 1949-1950; Bd.5-6 1951-1952; Bd.7-8 1953-1954; Bd.9-10 1955-1956; Bd.11-12 1957-1958; Bd.13-14 1959-1960; Bd.15-16 1961-1962; v.17-18 1963-1964; v.19-20 1965-66; Bd.19-20 1965-1966; v.21-22 1967-68; Bd.21-22 1967-1968; v.23-24 1969-70; Bd.23-24 1969-1970; v.25-26 1971-72; Bd.25-26 1971-1972; v.27-28 1973-74; Bd.27-28 1973-1974; v.29 1975; Bd.29-30 1975-1976; v.29 no.2-12(1975); Bd.31-32 1977-1978; Bd.33-34 1979-1980; Bd.35-36 1981-1982; Bd.37-38 1983-1984; v.38-39(1984-1985); Bd.39-40 1985-1986; v.40-41(1986-1987); Bd.41-42 1987-1988; v.42-43(1988-1989); Bd.43-44 1989-1990; v.44-45(1990-1991); Bd.45-46 1991-1992; Bd.47-49 1993-1995; v.10(1956); v.15(1961); v.24(1970); v.25(1971); v.26(1972); v.27(1973); v.30(1976); v.31(1977); v.3(1949); v.4(1950); v.5(1951); v.8(1954); v.9(1955); v.16(1962); v.17(1963); v.18(1964); v.19(1965); v.20(1966)