Union Pacific Railroad Company v. The United States , 389 F.2d 437 ( 1968 )
robert-m-underwood-john-e-reathaford-ronald-c-poland-v-venango-river , 995 F.2d 677 ( 1993 )
Celotex Corp. v. Catrett, Administratrix of the Estate of Catrett , 106 S. Ct. 2548 ( 1986 )