@incollection{Xu12,
author = {Xin Xu and Kai Zhang and Haidong Fu and Shunxin Li and Yimin Qiu and Xiaofeng Wang},
title = {The Design and Realization of a Portable Positioning System},
booktitle = {New Approach of Indoor and Outdoor Localization Systems},
publisher = {IntechOpen},
address = {Rijeka},
year = {2012},
editor = {Fouzia Boukour Elbahhar and Atika Rivenq},
chapter = {11},
doi = {10.5772/50483},
url = {https://doi.org/10.5772/50483}
}