Annual report.

v.1 1919; 2 (1920); 3 (1921); 11-14 (1928-32); 21-22 (1938-40); 23-24 (1940-42); 27-28 (1944-46); 29-30 (1946-48); yr.1948/50-0000; 31/32 (1948/1950); no.35-36 1952/53-19553/54; yr.1950/52-1952/54; 33/38 (1950/1954); no.37-38 1954/55-1955/56; yr.1956/58-0000; 39/40 (1956/1958); no.39-40 1956/57-1957/58; 41/42 (1958/1960); no.41-42 1958/59-1959/60; 43/44 (1960/1962); no.43-44 1960/61-1961/62; 45/46 (1962/1964); no.45-46 1962/63-1963/64; 47/48 (1964/1966); no.47-48 1964/65-1965/66; 49/50 (1966/1968); no.49-50 1966/67-1967/68; v.7-8