Highlight of the month by Jean-Daniel Ayache in April 2025

Setting

Mandatory cookies :

These cookies are mandatory for the operation of the site, so you cannot deactivate them. To remember your choice on this screen, we store cookies so that you do not have to ask this question again.

Obligatory

Audience measurement :

These cookies are used to make statistics and to better adapt our site to the use made of it.

Activate / Deactivate