Quellenverzeichnis
Bilder
© yurolaitsalbert/fotolia.com: Business people shaking hands (Partner)
© Gajus/fotolia.com: Team effort on the way to success (Karriere)
© JiSign/fotolia.com: Landschaft Energiemix (Vision)
© Ondrej Supitar_StockSnap (Forschung)
© FEN GmbH: Sonstige Fotos, Grafiken, Icons