Kathleen A. Shanaghan v. John D. Cahill Cahill & Associates, Incorporated , 58 F.3d 106 ( 1995 )
United Mine Workers of America v. Gibbs , 86 S. Ct. 1130 ( 1966 )
Carnegie-Mellon University v. Cohill , 108 S. Ct. 614 ( 1988 )