suchen [und] SGB RO 11-650[0123456789]* or RO 11-65[123456789][0123456789]* or RO 11-6[6789][0123456789][0123456789]* or RO 11-7[0123456789][0123456789][0123456789]* or RO 11-8[0123][0123456789][0123456789]* or RO 11-84[012345678][0123456789]* or RO 11-849[0123456789]*