date 1988 publication_date QS:P577,+1988-00-00T00:00:00Z/9 Source http://www.legislation.gov.uk/id/eur/1988/4243 PDF: http://www.legislation.gov.uk/eur...
and luminaires able to operate such lamps (Text with EEA relevance) Publication date 21 April 2010 Source http://www.legislation.gov.uk/id/eur/2010/347...
DescriptionJournal of the Optical Society of America, volume 33, number 7.pdf Journal of the Optical Society of America, volume 33, number 7. Date 1943...