@article{NnAaaa,
	author="L. Brinon-Arranz and A. Renzaglia and L. Schenato",
	title="Multirobot Symmetric Formations for Gradient and Hessian Estimation With Application to Source Seeking",
	journal="IEEE Trans. on Robotics",
	year="2019",
	pages="782 - 789",
	volume="3",
	number="35"
}