General report.

1948/1950; 1948/50-1950/51; no.2 1950-1951; no.2 1950/1951; no.3 1951-1952; no.3 1951/1952; 1952/1953; no.4 1952-1953; 1953/1954; no.5 1953/1954; no.5 1954; no.6 1955; 1954/55-1955/56; no.7 1956; no.6-7,9 1954/1955-1955/1956,1957/1958; 1955/56-1957/58; 1956/57-1957/58; no.9 1957-1958; no.10 1958-1959; no.10 1958/1959; 1958/59-1959/60; 1959/1960; no.11 1959-1960; no.11 1959/1960; 1960/1961; no.12 1960-1961; no.12 1960/1961; 1961/1962; no.13 1961-1962; no.13 1961/1962; 1962/1963; no.14 1962-1963; no.14 1962/1963; 1963/1964; no.15 1963-1964; 1964/1965; no.17 1965-1966; no.17 1965/1966; v.17 (1966); 1966/1967; v.18 (1967); no.19 1967-1968; no.19 1967/1968; v.19 (1968); 1968/1969; no.20 1968-1969; no.20 1968/1969; 1969/1970; no.21 1969-1970; no.21 1969/1970; 1970/71-1971/72; 1972/73-1973/74; no.25-29 1972-1974; no.30 1974; no.32 1975; no.22,25-31,33 1970,1972-1976; v.22-33 (1970-76); 1974/75-1975/76; Jan/June 1976 (33)