@inproceedings{inproceedings, title = {{Acoustic and Ultrasonic Characterisation of Blockages and Defects in Underground Pipes}}, publisher = {{IEEE}}, url = {{}}, year = {{2021}}, month = {{10}}, author = {{Towlson A and Yu Y and Sailor G and Horoshenkov K and Croxford A and Drinkwater B}}, doi = {{10.1109/sensors47087.2021.9639823}}, journal = {{2021 IEEE Sensors}}, note = {{Accessed on 2024/12/28}}}