United States v. Gary Lee Wickham , 618 F.2d 1307 ( 1980 )
William J. Walker v. United States , 816 F.2d 1313 ( 1987 )
Vincente Robinson-Bobb v. T.R. Young, Warden, and United States Parole Commission , 774 F.2d 1163 ( 1985 )