David Koch and Charles Koch | TIME
Samuel Ramey, Charles Koch and David Koch attend New York City... ニュース写真 - Getty Images
Who are the Koch brothers? - BBC News
Meet Julia Flesher Koch, Now One of the World's Richest Women
How Charles and David Koch will wield their power in the 2016 race.
USA: Milliardäre Charles und David Koch helfen Republikanern vs. Obama - DER SPIEGEL
What Is the Koch Brothers' Net Worth? See How They Spend Their Wealth
The Brothers Koch: Rich, Political And Playing To Win : NPR
The Koch brothers vs. God | Salon.com
Charles Koch & David Koch | TIME
Kochs to double election spending in 2016 | Financial Times
Charles and David Koch - ABC News (Australian Broadcasting Corporation)
Inside Charles and David Koch's Business Empire | Fortune
Charles G. Koch – Wikipedia
David Koch, Billionaire Who Fueled Right-Wing Movement, Dies at 79 - The New York Times
David Koch Net Worth 2021 - David Koch Has Died
Exclusive: Koch brothers will not use funds to try to block Trump nomination | Reuters.com
The Koch Brothers' Covert Ops | The New Yorker
One Koch Brother Forces the Other Out of the Family Business | The New Yorker
Charles Koch bereut seine Tea Party-Unterstützung
KOCH Newsroom | Charles Koch on the passing of his brother, David Koch
Twitter users - including Bette Midler - post cruel messages celebrating the death of David Koch | Daily Mail Online
David Koch, Billionaire Who Fueled Right-Wing Movement, Dies at 79 - The New York Times
David Koch Kids & Family: 5 Fast Facts You Need to Know | Heavy.com
