McDonnell Douglas Corp. v. Green , 93 S. Ct. 1817 ( 1973 )
Griggs v. Duke Power Co. , 91 S. Ct. 849 ( 1971 )
Matsushita Electric Industrial Co., Ltd. v. Zenith Radio Corporation , 106 S. Ct. 1348 ( 1986 )
Anderson v. Liberty Lobby, Inc. , 106 S. Ct. 2505 ( 1986 )