Dupont Circle Citizens Ass'n v. District of Columbia Zoning Commission , 431 A.2d 560 ( 1981 )
United Unions, Inc. v. District of Columbia Board of Zoning Adjustment , 554 A.2d 313 ( 1989 )
Davidson v. District of Columbia Board of Zoning Adjustment , 617 A.2d 977 ( 1992 )