Towards Design Flexibility and Freedom In Multi-Storey Timber Construction: Architectural Applications of a Novel, Adaptive Hollow Slab Building System. In Kjell Arne Malo, Anders Q. Nyrud, and Kristine Nore (Eds.), World Conference on Timber Engineering (WCTE 2023), 3905--3916, World Conference on Timber Engineering (WCTE 2023), As, Norway, 2023. [PUMA: 2023 adaptive architecture building construction design digital flexibility hollow itke knippers krtschil menges multi-storey neubauer orozco slab svatoš-raznjević system timber]