@article{rocha_costa_gehlen_droste_schmitt_2014,  title={Morphometric differences of <i>Microgramma squamulosa</i> (Kaulf.) de la Sota (Polypodiaceae) leaves in environments with distinct atmospheric air quality},  volume={86},  ISSN={0001-3765},  url={https://doi.org/10.1590/0001-3765201420130094},  DOI={10.1590/0001-3765201420130094},  number={3},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={ROCHA, LEDYANE D. and COSTA, GUSTAVO M. DA and GEHLEN, GÜNTHER and DROSTE, ANNETTE and SCHMITT, JAIRO L.},  year={2014},  month={Sep},  pages={1137–1146} }