Frei Otto, the pioneer of sustainability and lightweight structures was notified of the honor before his death on March 9.
Research, development and daring – Frei Otto wins the Pritzker Prize
Awards Archives - Metropolis
Frei Otto – pioneer and founder of lightweight membrane roofs
Posthumous Pritzker Architecture Prize awarded to Frei Otto
Frei Otto wins 2015 Pritzker Architecture Prize - Vogue Australia
40th Pritzker Prize Laureate Frei Otto Excelled in Lightweight
Celebrating Frei Otto's 2015 Pritzker Architecture Prize
Pritzker Prize for Frei Otto, German Architect, Is Announced After
Posthumous Pritzker Architecture Prize awarded to Frei Otto
The 2015 Laureate: In memoriam of Frei Otto - Morphocode