@article{201803.0058,
	doi = {10.20944/preprints201803.0058.v2},
	url = {https://doi.org/10.20944/preprints201803.0058.v2},
	year = 2018,
	month = {December},
	publisher = {Preprints},
	author = {Ali Hojjat},
	title = {Indoor Navigation Systems for Blind People},
	journal = {Preprints}
}