Family That Controls Sika Looks to Replace Directors Who Opposed Sale - The New York Times
Bill et Melinda Gates poursuivent Urs Burkard - La Liberté
Saint-Gobain, Burkard Family Extend Time Period for Deal – DWM Magazine
How Bill Gates Became Embroiled in a Swiss Shareholder Fight - The New York Times
Burkard vows to change and increase commercial power of IBSF if elected to replace Ferriani as President
Sika-Erbe Urs Burkard: «Man spürt, wie einem die Firma entrissen wird»
Ein Kompromiss zur allseitigen Gesichtswahrung beendet den Sika-Zwist | NZZ
Sika Reduces Voting Rights of Burkards to Stop Sale - WSJ
Burkard-Schenker family - Tharawat Magazine
History
Sika, Burkard family and Saint-Gobain find overall agreement
Alpine Takeover Tussle Exposes Risks of Swiss Family Companies - Bloomberg
Sika Founding Family Sues Directors Over Blocked Sale - WSJ
Paul Haelg, chairman of the board of Swiss chemicals group Sika gestures as he addresses a news conference in Zurich January 26, 2015. An attempt by Sika's major shareholder to sell the
Sika, Burkard family and Saint‐Gobain find overall agreement
Urs Burkard, representative of the majority shareholders of Swiss chemicals group Sika, reacts during the company's extraordinary shareholder meeting in the town of Baar July 24, 2015. The board of Swiss chemicals
Die schrecklich gierige Familie Burkard: So leben die Sika-Milliardäre
