Charles Koch & David Koch | TIME
Charles Koch - Wikipedia
David Koch, Billionaire Who Fueled Right-Wing Movement, Dies at 79 - The New York Times
Charles und David Koch | trend.at
David Koch: Milliardär und Großspender der Republikaner ist tot - DER SPIEGEL
David Koch Net Worth 2021 - David Koch Has Died
Who are the Koch brothers? - BBC News
David Koch, Billionaire Who Fueled Right-Wing Movement, Dies at 79 - The New York Times
Charles and David Koch: billionaire donors in the line of fire | Financial Times
Koch-funded super PAC may back Democratic incumbents against progressive challengers | Salon.com
Charles G. Koch – Wikipedia
Amerikanische Milliardäre: Charles und David Koch
David Koch dies: Billionaire businessman was influential GOP donor | CNN Politics
Who are the Koch brothers? - BBC News
David Koch - Wikipedia
David Koch and Charles Koch by Karl Rove: TIME 100
How Charles and David Koch will wield their power in the 2016 race.
Gebrüder Koch: Diese milliardenschweren Brüder wollen den nächsten US-Präsidenten bestimmen - FOCUS online
Koch vs. Koch: The Brutal Battle That Tore Apart America's Most Powerful Family – Mother Jones
John Jay College rejects money from Koch brothers
&hash=ffb599923712b0519342357a29705507cd929ae02083d073056dd6a742cbe8d5 "US-Milliardär David Koch stirbt mit 79 und hinterlässt ein schreckliches Vermächtnis - Finanzen100")
US-Milliardär David Koch stirbt mit 79 und hinterlässt ein schreckliches Vermächtnis - Finanzen100
Charles and David Koch: The billionaire brothers 'trying to buy America' | The Independent | The Independent
What Is the Koch Brothers' Net Worth? See How They Spend Their Wealth
Inside Charles and David Koch's Business Empire | Fortune
The Koch brothers are "all in" for 2018 with plans to spend up to $400 million | Salon.com
Charles & David Koch: Run the Republican Party | Gentleman's Journal
