@article{Makio ISHIHARA20202019EDP7241, title={Multi-Distance Function Trilateration over k-NN Fingerprinting for Indoor Positioning and Its Evaluation}, author={Makio ISHIHARA and Ryo KAWASHIMA}, journal={IEICE Transactions on Information and Systems}, volume={E103.D}, number={5}, pages={1055-1066}, year={2020}, doi={10.1587/transinf.2019EDP7241} }