. . . . . . "Background on tax shelters scheduled for a hearing before the Subcommittee on Oversight of the Internal Revenue Service of the Committee on Finance, on June 24, 1983"@en . "Background on tax shelters : scheduled for a hearing before the Subcommittee on Oversight of the Internal Revenue Service of the Committee on Finance, on June 24, 1983"@en . . . . . . . . . . .