International Conference on Light Metals.International Conference on Light Metals (6th : 1975 : Leoben and Vienna):6, International Leichtmetalltagung, leoben and Wien.Aluminium -Verlag,1975.
OrganisedbySiraInstituteLtd.,Symposium on Light Measurement in Industry.Symposium on Light Measurement in Industry (1978 : London):proceedings of ....SPIE,1979.
International Symposium on the Science and Technology of Light Sources.International Symposium on the Science and Technology of Light Sources (3rd : 1983 : Teulouse).,1983.