They are also referred to in the Commission Communication of 4 April 2011 entitled 'Towards a space strategy for the European Union that benefits its citizens'.
Déantar tagairt dóibh freisin sa Teachtaireacht ón gCoimisiún an 4 Aibreán 2011 dar teideal 'I dtreo straitéise spáis de chuid an Aontais Eorpaigh atá chun leasa a shaoránaigh'.