@book{93767,
	author = {Alencar, Marcelo S., and Rocha, Valdemar C. da,},
	title = {Communication systems /},
	publisher = {Springer,},
	year = {2020},
	address = {Cham, Switzerland :},
	edition = {Second edition},
	url = {https://link-springer-com.libraryumpsa.idm.oclc.org/book/10.1007/978-3-030-25462-9}
}