@article{ferreira_bellini_vasconcellos_2013,  title={Temporal variations of Collembola (Arthropoda: Hexapoda) in the semiarid Caatinga in northeastern Brazil},  volume={30},  ISSN={1984-4670},  url={https://doi.org/10.1590/S1984-46702013005000009},  DOI={10.1590/S1984-46702013005000009},  number={6},  journal={Zoologia (Curitiba)},  publisher={Sociedade Brasileira de Zoologia},  author={Ferreira, Aila Soares and Bellini, Bruno Cavalcante and Vasconcellos, Alexandre},  year={2013},  month={Dec},  pages={639–644} }