@book {5181,
	title = {De sphaera of Johannes de Sacrobosco in the Early Modern Period: The Authors of the Commentaries},
	year = {2020},
	publisher = {Springer Nature},
	organization = {Springer Nature},
	doi = {https://doi.org/10.1007/978-3-030-30833-9},
	author = {Matteo Valleriani}
}
