%0 Journal Article %A E. Nelken %T LUMINOUS FRAME FOR RETINOSCOPY %D 1959 %R 10.1136/bjo.43.7.444 %J British Journal of Ophthalmology %P 444-444 %V 43 %N 7 %U https://bjo.bmj.com/content/bjophthalmol/43/7/444.full.pdf