@misc{vetter_synthesis_and_2004, 
author={Vetter, S., Pereira Nunes, S.},
title={Synthesis and characterization of new sulfonated poly(arylene ether 1,3,4-oxadiazole)s},
year={2004},
howpublished = {journal article},
doi = {https://doi.org/10.1016/j.reactfunctpolym.2004.05.002},
note = {Online available at: \url{https://doi.org/10.1016/j.reactfunctpolym.2004.05.002} (DOI). Vetter, S.; Pereira Nunes, S.: Synthesis and characterization of new sulfonated poly(arylene ether 1,3,4-oxadiazole)s. Reactive and Functional Polymers. 2004. vol. 61, no. 2, 171-182. DOI: 10.1016/j.reactfunctpolym.2004.05.002}}