CREATE TABLE table_13081 ("Date  ( dd.mm.yyyy ) " CLOB, "Soviet Unit" CLOB, "Aircraft flown" CLOB, "Enemy Aircraft" CLOB, "Axis Unit" CLOB)

What was the date of the victory when the Soviet Unit was 73 giap, and the Enemy Aircraft was bf.109g-? w.nr.?
SELECT "Date (dd.mm.yyyy)" FROM table_13081 WHERE "Soviet Unit" = '73 giap' AND "Enemy Aircraft" = 'bf.109g-? w.nr.?'
SELECT "Date (dd.mm.yyyy)" FROM "table_13081" WHERE "Enemy Aircraft" = 'bf.109g-? w.nr.?' AND "Soviet Unit" = '73 giap'