Tax Court March 1991 casesPhoenix Mut. Life Ins. Co. v. Comm'r of Internal RevenueRosenberg v. Comm'r of Internal RevenueHillig v. Comm'r of Internal RevenueFirst Chicago Corp. v. Comm'r of Internal RevenueAsh v. Comm'r of Internal RevenuePhoenix Mut. Life Ins. Co. v. Comm'r of Internal RevenueVulcan Materials Co. & Subsidiary v. Comm'r of Internal RevenueHillig v. Commissioner of Internal Revenue