Дем’яненко, П.О., and Ю.Ф. Зінковський. 2010. “Concerning to Coherency of Electromagnetic Waves, Light in Particular (part 1)”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 40 (January):177-88. https://doi.org/10.20535/RADAP.2010.40.177-188.