@misc{fig:Arduino_Ethernet,
    author = "oomlout",
    title = "Arduino Ethernet",
    url = "https://upload.wikimedia.org/wikipedia/commons/f/f7/Arduino_Ethernet_Board_.jpg",
    keywords = "image"
}

@misc{free-sw,
    author = "FSF",
    title = "Qu'est-ce que le logiciel libre ?",
    url = "https://www.gnu.org/philosophy/free-sw.fr.html",
    keywords = "website"
}