CREATE TABLE table_71067 ("Stage" CLOB, "Date" CLOB, "Course" CLOB, "Distance" CLOB, "Winner" CLOB, "Race Leader" CLOB)

Which date has a Race Leader of hermann buse ( ger ), and a Stage of 5?
SELECT "Date" FROM table_71067 WHERE "Race Leader" = 'hermann buse ( ger )' AND "Stage" = '5'
SELECT "Date" FROM "table_71067" WHERE "Race Leader" = 'hermann buse ( ger )' AND "Stage" = '5'