Photo Credits

Photo Credits

This internet site uses pictures of the following photographer, stock agencies, sources:
freeimages.com, Flickr, Wikipedia

Individual Credits

Source: Usiminas

Source: Usiminas

Source: Usiminas

Source: www.freeimages.com
http://de.freeimages.com/photo/modern-office-building-1186276
Photographer: balu-ertl

Source: www.freeimages.com
http://www.freeimages.com/photo/364796
Photographer: Luis Lopez (luisete)