Тимошенко, Г. “Selecting the Number of Frequencies for Real Time Electroimpedancemetry of Biological Objects”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 55, Dec. 2013, pp. 118-27, doi:10.20535/RADAP.2013.55.118-127.