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The Bulletin des Séances/Mededelingen der Zittingen is the quarterly journal of the Academy. It comprises four issues of which the first one is a directory. The other three are devoted to the texts of presentations submitted orally during the meetings. The texts are indexed by keywords and authors in the general alphabetical tables.
The price of the annual subscription (4 issues) is set at 70.00 €. The previous issues can be also ordered separately.
Price per yearly volume: 34.80 €. Price per issue: 8.70 €. 3 issues till 1947, but 2 for 1940 and 1944; 4 issues from 1948 till 1953, 5 for 1954.
| Volume I | 1929-1930 | 610 pp. |
| Volume II | 1931 | 688 pp. |
| Volume III | 1932 | 682 pp. |
| Volume IV | 1933 | 885 pp. |
| Volume V | 1934 | 741 pp. |
| Volume VI | 1935 | 766 pp. |
| Volume VII | 1936 | 629 pp. |
| Volume VIII | 1937 | 894 pp. |
| Volume IX | 1938 | 871 pp. |
| Volume X | 1939 | 473 pp. |
| Volume XI | 1940 | 598 pp. |
| Volume XII | 1941 | 592 pp. |
| Volume XIII | 1942 | 510 pp. |
| Volume XIV | 1943 | 632 pp. |
| Volume XV | 1944 | 442 pp. |
| Volume XVI | 1945 | 708 pp. |
| Volume XVII | 1946 | 1084 pp. |
| Volume XVIII | 1947 | 947 pp. |
| Volume XIX | 1948 | 1035 pp. |
| Volume XX | 1949 | 1028 pp. |
| Volume XXI | 1950 | 1034 pp. |
| Volume XXII | 1951 | 1132 pp. |
| Volume XXIII | 1952 | 1210 pp. |
| Volume XXIV | 1953 | 1607 pp. |
| Volume XXV | 1954 | 1733 pp. |
The price of the yearly volume, from 1955 till 1967, is 19.80 €. Price per issue: 7.40 €.
Price of volume 14 (1968): 37.20 € (3 issues). Price per issue: issue 1 (Yearbook): 11.20 €, issues 2 and 3: 17.40 €.
Volumes 15 (1969) and following include 4 issues. Price of the yearly volume: 70.00 €. Price per issue: issue 1 (Yearbook): 13.20 €; issues 2, 3 and 4 : 20.00 €.
| Volume 1 | 1955 | 1199 pp. |
| Volume 2 | 1956 | 1248 pp. |
| Volume 3 | 1957 | 1425 pp. |
| Volume 4 | 1958 | 1453 pp. |
| Volume 5 | 1959 | 1452 pp. |
| Volume 6 | 1960 | 1133 pp. |
| Volume 7 | 1961 | 979 pp. |
| Volume 8 | 1962 (1.) | 1153 pp. |
| Volume 9 | 1963 | 1210 pp. |
| Volume 10 | 1964 | 1670 pp. |
| Volume 11 | 1965 | 1583 pp. |
| Volume 12 | 1966 | 1124 pp. |
| Volume 13 | 1967 | 1212 pp. |
| Volume 14 | 1968 | 938 pp. |
| Volume 15 | 1969 | 972 pp. |
| Volume 16 | 1970 | 827 pp. |
| Volume 17 | 1971 | 1855 pp. |
| Volume 18 | 1972 | 603 pp. |
| Volume 19 | 1973 | 861 pp. |
| Volume 20 | 1974 | 653 pp. |
| Volume 21 | 1975 | 523 pp. |
| Volume 22 | 1976 | 765 pp. |
| Volume 23 | 1977 | 652 pp. |
| Volume 24 | 1978 | 535 pp. |
| Volume 25 | 1979 | 698 pp. |
| Volume 26 | 1980 (2.) | 600 pp. |
| Volume 27 | 1981 | 780 pp. |
| Volume 28 | 1982 | 559 pp. |
| Volume 29 | 1983 | 579 pp. |
| Volume 30 | 1984 | 535 pp. |
| Volume 31 | 1985 | 554 pp. |
| Volume 32 | 1986 (3.) | 679 pp. |
| Volume 33 | 1987 | 685 pp. |
| Volume 34 | 1988 (4.) | 678 pp. |
| Volume 35 | 1989 | 570 pp. |
| Volume 36 | 1990 (5.) | 774 pp. |
| Volume 37 | 1991 | 794 pp. |
| Volume 38 | 1992 | 676 pp. |
| Volume 39 | 1993 (6.) | 655 pp. |
| Volume 40 | 1994 | 609 pp. |
| Volume 41 | 1995 (7.) | 677 pp. |
| Volume 42 | 1996 | 908 pp. |
| Volume 43 | 1997 | 627 pp. |
| Volume 44 | 1998 | 675 pp. |
| Volume 45 | 1999 | 587 pp. |
| Volume 46 | 2000 | 571 pp. |
| Volume 47 | 2001 (8.) | 577 pp. |
| Volume 48 | 2001 | 545 pp. |
| Volume 49 | 2003 | 533 pp. |
| Volume 50 | 2004 | 565 pp. |
| Volume 51 | 2005 | 565 pp. |
| Volume 52 | 2006 | 553 pp. |
| Volume 53 | 2007 | 539 pp. |
| Volume 54 | 2008 | 641 pp. |
| Volume 55 | 2009 | 587 pp. |
| Volume 56 | 2010 | |
| Volume 57 | 2011 |