(1)
Hotra, Z.; Stakhira, P.; Cherpak, V.; Volynyuk, D.; Voznyak, L.; Gorbulyk, V.; Tsizh, B. Effect of Thickness of CuI Hole Injection Layer on Properties of Organic Light Emitting Diodes. Photonics Lett. Pol. 2012, 4, pp. 35-37.