title: Gravitational lenses.
authors.affiliation: Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USA.
authors.forename: J R
authors.initials: JR
authors.lastname: Gott
mesh_terms: D004867:Equipment Design; D006112:Gravitation; D006801:Humans; D007909:Lenses; D009903:Optical Illusions