ÖZDEMİR, B. N., and A. CEYLAN. “Effect of Calibration Point Density on Indoor Positioning Accuracy: A Study Based on Wi-Fi Fingerprinting Method”. Advanced Geomatics, vol. 1, no. 1, Sept. 2021, pp. 21-26, https://publish.mersin.edu.tr/index.php/geomatics/article/view/40.