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_29313 ( "Stage" real, "Stage winner" text, "General classification" text, "Points classification" text, "Mountains classification" text, "Asian rider classification" text, "Team classification" text )

### Question ###
Who is listed under points classification when the stage winner is malcolm lange?

### Accurate SQL ###

SELECT "Points classification" FROM table_29313 WHERE "Stage winner" = 'Malcolm Lange'