| 1960 | Established the first theoretical program for IAF pilots |
| 1968 | Founded the Laboratoire de Mathématique physique in Dijon |
| 1972 | Proposed (with D.Sternheimer) the creation of what became in 1976 the International Association of Mathematical Physics (IAMP) |
| 1975 | Founded "Letters in Mathematical Physics" |
| 1996 | Initiated (with L.D. Faddeev) a project to have a modernized version in English of the Russian Encyclopedia of Mathematical Physics, MEMPhys |