is there a way to extract the info about credit memos applied to receips through webservices...

Customers are applying credit memos to receipts and then applying receipts to invoices.If receipts and credit memos are applied separately to invoice,we were able to get the application details through webservices.

We are not able to get credit memo application details if credit memos are applied to receipts.is there a way to extract the information through webservices?