S. Rosa, Guilherme, Nelson J. Schuch, Natanael R. Gomes, José R. Bergmann, Ezequiel Echer, and Renato Machado. 2015. “Inexpensive Interferometer for Low Frequency Radio Astronomy”. Journal of Communication and Information Systems 27 (1). https://doi.org/10.14209/jcis.2012.5.