CREATE TABLE table_name_43 (round VARCHAR, race VARCHAR)

What shows for round when the race was Int. Adac Preis Von Zweibr cken?
SELECT round FROM table_name_43 WHERE race = "int. adac preis von zweibrücken"
SELECT "round" FROM "table_name_43" WHERE "int. adac preis von zweibrücken" = "race"