Coca, E., V. Popa, V. G. Găitan, C. O. Turcu, and Cr. Turcu. 2008. “Speed Measurement of a Moving Object by Using a RFID Location System and Active Transponders”. Elektronika Ir Elektrotechnika 88 (8):63-66. https://eejournal.ktu.lt/index.php/elt/article/view/11339.