Jeux & Stratégie was a French magazine about games, owned by Excelsior publications at first. They published a RPG and provided in each issues a boardgame.
Source: Wikipedia, "Jeux_&_Stratégie", available under the CC-BY-SA License.
These games were included in the French magazine Jeux & Stratégie. You can find more information on this geeklist: http://www.boardgamegeek.com/geeklist/19657/jeux-strategie-la-geeklist