SELECT Issue_Date FROM artist AS T1 JOIN volume AS T2 ON T1.Artist_ID  =  T2.Artist_ID WHERE T1.age  <=  23
Return the issue dates of volumes by artists who are at most 23 years old?
SELECT Issue_Date FROM artist AS T1 JOIN volume AS T2 ON T1.Artist_ID = T2.Artist_ID WHERE T1.age < = 23
select issue_date from artist as t1 join volume as t2 on t1 . artist_id = t2 . artist_id where t1 . age < = value
Return the issue dates of volumes by artists who are at most 23 years old ?