00479nam a2200169Ia 4500003000900000008004100009020001800050040001600068080001900084100001800103245006500121260003300186300001400219650001800233650001500251650004300266IN-BaIIA211028s9999    xx            000 0 eng d  a0-12-742050-9  cIIA Library  a535.313.6bWEL  aWelford, W. T 0aAberrations of the symmetrical optical systemcW. T. Welford  aLondonbAcademic Pressc1974  aix, 240p.  a Aberrations  a Optics   aAstronomy and Astrophysics Thesaurus