Boardgamegeek https://boardgamegeek.com/boardgameexpansion/161599/race-galaxy-xeno-invasion
English - Race for the Galaxy: Xeno Invasion, an expansion for the RftG base game that comprises the third story arc in the game series, depicts the galaxy as being under attack by waves of violently xenophobic aliens.
Ludovox http://ludovox.fr/jeu-de-societe/race-for-the-galaxy-xeno-invasion/
French - Extension pour RFTG pour joueurs intermédiaires
Official http://www.ystari.com/accueil/jeux/traductions/race-for-the-galaxy/
French - Explorer, Coloniser, Développer, Vendre, Consommer ou Produire ?