• Madalpingelised elektripaigaldised. Osa 5-559, Elektriseadmete valik ja paigaldamine. Valgustid ja valgustuspaigaldised [Võrguteavik] = Low-voltage electrical installations. Part 5-559, Selection and erection of electrical equipment ; Luminaires and lighting installations (IEC 60364-5-55:2011, modified)2017 http://www.ester.ee/record=b4742051*est