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_44101 ( "Nat." text, "Name" text, "Moving from" text, "Type" text, "Transfer window" text, "Ends" real, "Transfer fee" text, "Source" text )

### Question ###
Where is the moving from location with a transfer window of summer and the source kerkida.net?

### Accurate SQL ###

SELECT "Moving from" FROM table_44101 WHERE "Transfer window" = 'summer' AND "Source" = 'kerkida.net'