@article {, title = {LOCATE-US: Indoor Positioning for Mobile Devices Using Encoded Ultrasonic Signals, Inertial Sensors and Graph-Matching.}, journal = {Sensors}, volume = {21}, year = {2021}, month = {03/2021}, pages = {1950- 1960}, publisher = {MDPI}, address = {Suiza}, issn = {1424-8220}, doi = {10.3390/s21061950}, author = {Gualda, D and M. C. P{\'e}rez and Ure{\~n}a, J. and A. Hernandez} }