https://scholar.google.com.ua/citations?
http://www.irbis-nbuv.gov.ua/cgi-bin/irbis_nbuv/cgiirbis_64.exe?Z21ID=&I21DBN=UJRN&P21DBN=UJRN&S21STN=1&S21REF=10&S21FMT=juu_all&C21COM=S&S21CNR=20&S21P01=0&S21P02=0&S21P03=PREF=&S21COLORTERMS=0&S21STR=ptp
http://nfv.ukrintei.ua/view/5b1925e27847426a2d0ab595
https://publons.com/researcher/4215257/perspective-technologies-and-devices-ptp/