Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_25129482_1 ( stadium VARCHAR, manager VARCHAR )

### Question ###
Which stadium is managed by Kari Martonen?

### Accurate SQL ###

SELECT stadium FROM table_25129482_1 WHERE manager = "Kari Martonen"