Fotografías y gráficos utilizados en las páginas de redacción:

© Döring & Waesch, doeringwaesch.de (Startseite, Gruppenporträt mit Schwungtuch)

© Daniel Bühl, www.danielbuehl.de

© a_korn, www.fotolia.com

© aerogondo, www.fotolia.com

© Africa Studio, www.fotolia.com

© Alexander Raths, www.fotolia.com

© angellodeco, www.fotolia.com

© apops, www.fotolia.com

© brat82, www.fotolia.com

© corbisrffancy, www.fotolia.com

© deeaf, www.fotolia.com

© DOC RABE Media, www.fotolia.com

© everythingpossible, www.fotolia.com

© Gajus, www.fotolia.com

© Gina Sanders, www.fotolia.com

© jd-photodesign, www.fotolia.com

© kasto, www.fotolia.com

© Kenishirotie, www.fotolia.com

© klaikungwon, www.fotolia.com

© lumen-digital, www.fotolia.com

© MK-Photo, www.fotolia.com

© momius, www.fotolia.com

© natalishev, www.fotolia.com

© Olivier Le Moal, www.fotolia.com

© pathdoc, www.fotolia.com

© Paulista, www.fotolia.com

© peshkova, www.fotolia.com

© photowahn, www.fotolia.com

© pix4U, www.fotolia.com

© Robert Kneschke, www.fotolia.com

© Romolo Tavani, www.fotolia.com

© Sergey Nivens, www.fotolia.com

© stockpics, www.fotolia.com

© sudok1, www.fotolia.com

© thingamajiggs, www.fotolia.com

© Tiberius Gracchus, www.fotolia.com

© Tobilander, www.fotolia.com

© vector_master, www.fotolia.com

© vege, www.fotolia.com

© wavebreakpremium, www.fotolia.com

© Westend61, www.fotolia.com

© whitelook, www.fotolia.com

© Wrangler, www.fotolia.com

© Zerbor, www.fotolia.com