suchen [und] SGB \AN 29-[123][0123456789][0123456789][0123456789]* or \AN 29-4[012345678][0123456789][0123456789]* or \AN 29-49[012345678][0123456789]* or \AN 29-499[0123456789]* or \AN 29-0[123456789][0123456789][0123456789]* or \AN 29-00[123456789][0123456789]* or \AN 29-000[123456789]*