CREATE TABLE table_11602313_4 (release_date VARCHAR2, sspec_number VARCHAR2)

What is the release date for the model with sspec number sla4h(m0)?
SELECT release_date FROM table_11602313_4 WHERE sspec_number = "SLA4H(M0)"
SELECT "release_date" FROM "table_11602313_4" WHERE "SLA4H(M0)" = "sspec_number"