CREATE TABLE table_2733 ("Region" CLOB, "Citation" CLOB, "Court of Appeals" CLOB, "Established" FLOAT, "Judges" FLOAT, "Meeting places" FLOAT, "Chief judge" CLOB)

If the region is the Southern district of Texas, what is the citation?
SELECT "Citation" FROM table_2733 WHERE "Region" = 'Southern District of Texas'
SELECT "Citation" FROM "table_2733" WHERE "Region" = 'Southern District of Texas'