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_name_15 ( team VARCHAR, driver VARCHAR, class VARCHAR, laps VARCHAR )

### Question ###
What is the team of driver klaus ludwig, who is class c1 and has more than 77 laps?

### Accurate SQL ###

SELECT team FROM table_name_15 WHERE class = "c1" AND laps > 77 AND driver = "klaus ludwig"