David Koch spent billions giving back to charity, here's where it all went | Fox Business
Who are the Koch brothers? | PBS NewsHour
How US billionaires are fuelling the hard-right cause in Britain | George Monbiot | The Guardian
A Billionaire's Affairs: David Koch - CitySignal
The Koch Brothers' Covert Ops | The New Yorker
Industrialist and Philanthropist David H. Koch Dies | Philanthropy news | PND
What Is the Koch Brothers' Net Worth? See How They Spend Their Wealth
How the Koch brothers fundamentally changed modern politics | CNN Politics
Charles and David Koch - TheXtraordinary
Charles Koch bereut seine Tea Party-Unterstützung
Koch Industries: Secretly Funding the Climate Denial Machine - Greenpeace USA
Julia Koch - Wikiwand
Charles Koch — CEO of Koch Industries (#381) – The Blog of Author Tim Ferriss
Inside Charles and David Koch's Business Empire | Fortune
How Charles and David Koch Plan to Remake the Republican Party
What Is the Koch Brothers' Net Worth? See How They Spend Their Wealth
KOCH Newsroom | Announcement from Charles Koch on David Koch's Retirement
One Koch Brother Forces the Other Out of the Family Business | The New Yorker
Revelations Over Koch Gifts Prompt Inquiry at George Mason University - The New York Times
Charles & David Koch: Run the Republican Party | Gentleman's Journal
KOCH Newsroom | Charles Koch on the passing of his brother, David Koch
What Is the Koch Brothers' Net Worth? See How They Spend Their Wealth
Koch Network to Spend $20 Million Touting Tax Overhaul
KOCH Newsroom | Brothers yes, but Charles and David Koch are not "brainless robots"
David Koch, Billionaire Who Fueled Right-Wing Movement, Dies at 79 - The New York Times
