J. P. Jordaan, C. P. Kruger, B. J. Silva, G. P. Hancke. An ultrasonic-based localization system for underground mines. In 15th IEEE International Conference on Industrial Informatics, INDIN 2017, Emden, Germany, July 24-26, 2017. pages 141-146, IEEE, 2017. [doi]
Abstract is missing.