@misc{fritsch_relationship_of_1996, 
author={Fritsch, D., Avella, N.},
title={Relationship of structure and permeability of poly(amide imide)s},
year={1996},
howpublished = {book part},
note = {Fritsch, D.; Avella, N.: Relationship of structure and permeability of poly(amide imide)s. In: Abadie, M.; Sillion, B. (Ed.): Polyimides and High Performance Polymers; STEPI 4. 1996. 423-429.}}