Adickes v. S. H. Kress & Co. , 90 S. Ct. 1598 ( 1970 )
Matsushita Electric Industrial Co., Ltd. v. Zenith Radio Corporation , 106 S. Ct. 1348 ( 1986 )
Celotex Corp. v. Catrett, Administratrix of the Estate of Catrett , 106 S. Ct. 2548 ( 1986 )