Gebrüder Koch: Diese milliardenschweren Brüder wollen den nächsten US-Präsidenten bestimmen - FOCUS online
Charles G. Koch – Wikipedia
David Koch and Charles Koch by Karl Rove: TIME 100
Who are the Koch brothers? - BBC News
How Charles and David Koch will wield their power in the 2016 race.
What Is the Koch Brothers' Net Worth? See How They Spend Their Wealth
All About The Koch Brothers - Charles and David Koch - YouTube
The Kochs Are Inching Closer to Becoming Media Moguls - The New York Times
David Koch, Billionaire Who Fueled Right-Wing Movement, Dies at 79 - The New York Times
USA: Milliardäre Charles und David Koch helfen Republikanern vs. Obama - DER SPIEGEL
Charles & David Koch: Run the Republican Party | Gentleman's Journal
Charles Koch - Wikipedia
The Koch brothers are "all in" for 2018 with plans to spend up to $400 million | Salon.com
Soros und Koch: Die ungewöhnlichste Allianz des Jahres - news.ORF.at
David Koch dies: Billionaire businessman was influential GOP donor | CNN Politics
Donald Trump gegen die Koch-Brüder: Diese Fehde gefährdet seine Macht | STERN.de
David Koch Net Worth 2021 - David Koch Has Died
David Koch: Milliardär und Großspender der Republikaner ist tot - DER SPIEGEL
Charles Koch & David Koch | TIME
What Is the Koch Brothers' Net Worth? See How They Spend Their Wealth
Charles und David Koch | trend.at
Who are the Koch brothers? - BBC News
One Koch Brother Forces the Other Out of the Family Business | The New Yorker
David Koch, Billionaire Who Fueled Right-Wing Movement, Dies at 79 - The New York Times
Charles and David Koch: The billionaire brothers 'trying to buy America' | The Independent | The Independent
How Charles and David Koch Plan to Remake the Republican Party
