23.03.2020 DUOL a commencé avec la montage de deux grandes bulles dans la region du Golfe et en Australie.
13.03.2020 Dear partners, unfortunately we have been witnessing extremely fast changes in the last days regarding the spread of coronavirus (COVID-19) infection, therefore we at DUOL have also taken all necessary measures to face these circumstances responsibly.
24.09.2019 What does a Jurassic Park and a Roller Skating Rink have in common? Both are covered by a DUOL air dome, making them the first air-supported structures in SE Asia.