@article{trosdtorf junior_rocha-campos_tomio_santos_canuto_2001,  title={Origin and preservation of stratigraphically repeated, glacially striated surfaces in the Itararé Subgroup (Late Paleozoic) in Palmeira, State of Paraná},  volume={73},  ISSN={0001-3765},  url={https://doi.org/10.1590/S0001-37652001000300024},  DOI={10.1590/S0001-37652001000300024},  number={3},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={TROSDTORF JUNIOR, IVO and ROCHA-CAMPOS, ANTONIO C. and TOMIO, ALEXANDRE and SANTOS, PAULO R. and CANUTO, JOSÉ R.},  year={2001},  month={Sep},  pages={467–468} }