Makarovska, Olga (2005). "Overview of Radiological Accidents Involving Orphan Radioactive Sources of Ionizing Radiation Worldwide" (PDF). Security and Nonproliferation: 23–24. Retrieved 30 June 2019. http://www.ntc.kiev.ua/download/arh/BTN/8.pdf
Makarovska, Olga (2005). "Overview of Radiological Accidents Involving Orphan Radioactive Sources of Ionizing Radiation Worldwide" (PDF). Security and Nonproliferation: 23–24. Retrieved 30 June 2019. http://www.ntc.kiev.ua/download/arh/BTN/8.pdf
Obodovskiy, I. (2019). Radiation: Fundamentals, Applications, Risks, and Safety. Amsterdam: Elsevier. p. 540. ISBN 9780444639868. 9780444639868
Makarovska, Olga (2005). "Overview of Radiological Accidents Involving Orphan Radioactive Sources of Ionizing Radiation Worldwide" (PDF). Security and Nonproliferation: 23–24. Retrieved 30 June 2019. http://www.ntc.kiev.ua/download/arh/BTN/8.pdf
Makarovska, Olga (2005). "Overview of Radiological Accidents Involving Orphan Radioactive Sources of Ionizing Radiation Worldwide" (PDF). Security and Nonproliferation: 23–24. Retrieved 30 June 2019. http://www.ntc.kiev.ua/download/arh/BTN/8.pdf
Makarovska, Olga (2005). "Overview of Radiological Accidents Involving Orphan Radioactive Sources of Ionizing Radiation Worldwide" (PDF). Security and Nonproliferation: 23–24. Retrieved 30 June 2019. http://www.ntc.kiev.ua/download/arh/BTN/8.pdf
Obodovskiy, I. (2019). Radiation: Fundamentals, Applications, Risks, and Safety. Amsterdam: Elsevier. p. 540. ISBN 9780444639868. 9780444639868
Makarovska, Olga (2005). "Overview of Radiological Accidents Involving Orphan Radioactive Sources of Ionizing Radiation Worldwide" (PDF). Security and Nonproliferation: 23–24. Retrieved 30 June 2019. http://www.ntc.kiev.ua/download/arh/BTN/8.pdf