October 1991 Publication date 1991 publication_date QS:P577,+1991-00-00T00:00:00Z/9 Source http://www.legislation.gov.uk/id/eur/1991/3180 PDF: http://www...
+1990-00-00T00:00:00Z/9 Source http://www.legislation.gov.uk/id/eur/1990/3180 PDF: http://www.legislation.gov.uk/eur/1990/3180/pdfs/eur_19903180_adopted_en.pdf...
+1993-00-00T00:00:00Z/9 Source http://www.legislation.gov.uk/id/eur/1993/3180 PDF: http://www.legislation.gov.uk/eur/1993/3180/pdfs/eur_19933180_adopted_en.pdf...
QS:P577,+1991-00-00T00:00:00Z/9 Source http://www.legislation.gov.uk/id/eur/1991/3494 PDF: http://www.legislation.gov.uk/eur/1991/3494/pdfs/eur_19913494_adopted_en...
+1993-00-00T00:00:00Z/9 Source http://www.legislation.gov.uk/id/eur/1993/3237 PDF: http://www.legislation.gov.uk/eur/1993/3237/pdfs/eur_19933237_adopted_en.pdf...
+1974-00-00T00:00:00Z/9 Source http://www.legislation.gov.uk/id/eur/1974/1760 PDF: http://www.legislation.gov.uk/eur/1974/1760/pdfs/eur_19741760_adopted_en.pdf...
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...