Modeling and analysis of the trapping mechanism of Aldrovanda vesiculosa as biomimetic inspiration for façade elements. IASS Annual Symposium, Hamburg, Germany, 25-28 Sept 2017. [PUMA: biomimetic körner vesiculosa born sachse speck inspiration gresser knippers facade analysis modelling poppinga trapping 2017 itke from:petraheim element mechanism westermeier Aldrovanda bischoff]