Refoulement -- Great Britain : The Law and Practice of Expulsion and Exclusion from the United Kingdom Deportation, Removal, Exclusion and Deprivation of Citizenship
Refraction, Astronomical : Nicole Oresme's De visione stellarum (On seeing the stars) : a critical edition of Oresme's treatise on optics and atmospheric refraction / with an introduction, commentary, and English translation by Dan Burton
2007
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Refraction, Astronomical -- Early works to 1800 : Nicole Oresme's De visione stellarum (On seeing the stars) : a critical edition of Oresme's treatise on optics and atmospheric refraction / with an introduction, commentary, and English translation by Dan Burton
Refractive Errors -- diagnosis. : Clinical optics primer for ophthalmic medical personnel : a guide to laws, formulae, calculations, and clinical applications / Aaron V. Shukla
Surgical procedures employed to correct REFRACTIVE ERRORS such as MYOPIA; HYPEROPIA; or ASTIGMATISM. These may involve altering the curvature of the CORNEA; removal or replacement of the CRYSTALLINE LENS; or modification of the SCLERA to change the axial length of the eye