Celotex Corp. v. Catrett, Administratrix of the Estate of Catrett , 106 S. Ct. 2548 ( 1986 )
Anderson v. Liberty Lobby, Inc. , 106 S. Ct. 2505 ( 1986 )
East Texas Motor Freight System, Inc. v. Rodriguez , 97 S. Ct. 1891 ( 1977 )