Riess, AdamKirshner, Robert PSchmidt, Brian2015-12-132015-12-130004-6256http://hdl.handle.net/1885/94489The work at U. C. Berkeley was supported by the Miller Institute for Basic Research in Science as well as NSF grant AST 94-17213. Supernova research at Harvard University is supported by the NSF through grants AST 95-28899 and AST 92-18475.18 pages© 1999. The American Astronomical Society.199910.1086/3007382015-12-12