David Koch - Wikipedia
The Brothers Koch: Rich, Political And Playing To Win : NPR
Charles and David Koch | Biographies, Politics, & Facts | Britannica
David und Charles Koch investieren in „Time“-Verlag: In die Höhle des Löwen
Charles und David Koch: Unsichtbare Wahlkämpfer - Politik - SZ.de
Charles Koch & David Koch | TIME
Inside Charles and David Koch's Business Empire | Fortune
Gebrüder Koch: Diese milliardenschweren Brüder wollen den nächsten US-Präsidenten bestimmen - FOCUS Online
David Koch, Billionaire Who Fueled Right-Wing Movement, Dies at 79 - The New York Times
How Charles and David Koch will wield their power in the 2016 race.
David Koch's Ex: 'I Was Just One of Many Girls' | Observer
David Koch, Billionaire Who Fueled Right-Wing Movement, Dies at 79 - The New York Times
Kochs to double election spending in 2016 | Financial Times
Who are the Koch brothers? - BBC News
What Is the Koch Brothers' Net Worth? See How They Spend Their Wealth
The Next Koch Doesn't Like Politics - POLITICO Magazine
The NY Times' absurd Koch brothers conspiracy
One Koch Brother Forces the Other Out of the Family Business | The New Yorker
Who are the Koch brothers? | PBS NewsHour
Budget for Charles and David Koch-backed network: almost $1 billion for 2016 | Daily Mail Online
David Koch, Billionaire Who Fueled Right-Wing Movement, Dies at 79 - The New York Times
One Nation met with Koch Industries last year. These are the brothers behind it - ABC News
David Koch Dies; Billionaire Industrialist Funded Conservative Causes : NPR
