IBA Gesprek|IBA Talk
Februari 2014. Samen met Heike Löhmann organiseert Mathias het eerste internationale Gesprek van genootschap AetA over der stedelijke impulsen van Internationale Bauaustellungen in Nederland en Duitsland.
February 2014. Mathias organizes the first international discussion by Dutch association Architectura et Amicitia (AetA) about impulses for urban development by International Building Exhibitions in the Netherlands and Germany (together with Heike Loehmann