What Is the Koch Brothers' Net Worth? See How They Spend Their Wealth
Kochs to double election spending in 2016 | Financial Times
KOCH Newsroom | Celebrating David Koch's life and legacy
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
Gebrüder Koch: Diese milliardenschweren Brüder wollen den nächsten US-Präsidenten bestimmen - FOCUS Online
How Charles and David Koch will wield their power in the 2016 race.
David Koch, Billionaire Who Fueled Right-Wing Movement, Dies at 79 - The New York Times
Who are the Koch brothers? | PBS NewsHour
Charles G. Koch – Wikipedia
Exclusive: Koch brothers will not use funds to try to block Trump nomination | Reuters.com
Charles Koch bereut seine Tea Party-Unterstützung
The Koch brothers vs. God | Salon.com
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
KOCH Newsroom | Charles Koch on the passing of his brother, David Koch
KOCH Newsroom | Announcement from Charles Koch on David Koch's Retirement
Meet Julia Flesher Koch, Now One of the World's Richest Women
Inside Charles and David Koch's Business Empire | Fortune
Charles und David Koch: Unsichtbare Wahlkämpfer - Politik - SZ.de
USA: Milliardäre Charles und David Koch helfen Republikanern vs. Obama - DER SPIEGEL
The Brothers Koch: Rich, Political And Playing To Win : NPR
Charles and David Koch - ABC News (Australian Broadcasting Corporation)
David H. Koch – Wikipedia
The Koch Brothers' Covert Ops | The New Yorker
Twitter users - including Bette Midler - post cruel messages celebrating the death of David Koch | Daily Mail Online
David Koch and Charles Koch | TIME
