Anciens bulletins de liaison (1972-2014) 1980 – Bulletin 16 1979 – Bulletin 14 1977 -3- Bulletin 13 1977 -2 – Bulletin 12 1977 -1 – Bulletin 11 1976 -3- Bulletin 10 1976 -2 – Bulletin 09 1976 -1 – Bulletin 08 1975-3 – Bulletin 07 1975-2 – Bulletin 06 1975-1 – Bulletin 05 1974-3 – Bulletin 04 1974-2 – Bulletin 03 1974-1 – Bulletin 02 1972 – Bulletin 01 2023-02-22
