CREATE TABLE table_name_53 (date VARCHAR2, winning_team VARCHAR2, circuit VARCHAR2)

What is the date of the zolder circuit, which had a.z.k./roc-comp tition a.z.k./roc-comp tition as the winning team?
SELECT date FROM table_name_53 WHERE winning_team = "a.z.k./roc-compétition a.z.k./roc-compétition" AND circuit = "zolder"
SELECT "date" FROM "table_name_53" WHERE "a.z.k./roc-compétition a.z.k./roc-compétition" = "winning_team" AND "circuit" = "zolder"