Natural fibres as ecologic flame retardants in green agro-plastic building products?. Internationales Symposium: naro.tech Werkstoffe aus Nachwachsende Rohstoffen, Erfurt, 2014. [PUMA: biomat dahy ecologic product natural building knippers retardant agro-plastic biobased itke from:petraheim 2014 flame architecture fibre]
Bioacoustic room divider – Flame retardant PLA for interior use. bioplastics MAGAZINE, (Vol. 7):38 – 40, February 2012. [PUMA: polymer pla 2012 bioacoustic retardant köhler-hammer plastic room interior divider itke from:petraheim flame architecture]