Nunes, Breno, 		Colliri, Tiago, 		Lauretto, Marcelo, 		Liu, Weiguang, E 		Zhao, Liang.
" Anomaly Detection in Brazilian Federal Government Purchase Cards Through Unsupervised Learning Techniques" <em>Anais da Brazilian Conference on Intelligent Systems (BRACIS)</em> [Online], (29 novembro 2021)