@conference {,
	title = {Design and Implementation of Remotely Configurable Ultrasonic Local Positioning Systems},
	booktitle = {International Conference on Indoor Positioning and Indoor Navigation },
	year = {2019},
	month = {10/2019},
	pages = {1-8},
	publisher = {IPIN},
	organization = {IPIN},
	address = {Pisa, Italia},
	issn = {978-1-7281-1788-1},
	author = {F. Ciudad and A. Hernandez and Gualda, D and E. Aparicio}
}
