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Head: Nazarenko Leonid A.. The energy-efficient lighting systems investigation. (popup.stage: ). O.M. Beketov national university of urban economy in Kharkiv. № 0221U101124

Cherkashina Ylena Leonidovna. Physical base of creation of acousto-optical filters with the application diffraction light and ultrasonic wave interaction at double Bragg angle : к.ф.-м.н. : spec.. 01.04.01 - Фізика приладів, елементів і систем : presented. 2004-10-15; popup.evolution: .; Kharkov National University named after V.N. Karazin. – , 0404U004013.