T. . Rymarczyk, P. . Adamkiewicz, J. Szumowski, K. Niderla, Łukasz Gołąbek, and J. Sikora, “CONCEPT OF DETECTION SYSTEM TO LOCALIZE INSIDE CLOSED AREA BY RADIO TOMOGRAPHIC IMAGING”, IAPGOS, vol. 7, no. 1, pp. 92–95, Mar. 2017.