[Bulletin ...].

1915; 1922; 1922-1924; no.1; no.3; no.5; no.7 uuuu; v.9 no.15 1927/1928; v.9 no.15a 1927/1928; no.20; v.10 no.21 1927/1928; no.21-31 1931; v.17 no.20 1932-1933; no.32-41 uuuu; no.33 1934; 1933-1935; v.29 no.24 1934/1935; no.35 1935; no.38 1936; no.1-2 1939-1940; no.1 (1940); no.2 (1941); no.6 1955; 1955/1956; no.8-16 1956; no.17 1960; no.18 1961; no.19 1961; 1962/1963; 1964/1965; 1966/1967-1967/1968; no.42-51; no.52; no.53; no.54; no.55; no.56-68 uuuu