-// TODO: translate the following stings.
-// 'form.invoice.invoice_to_delete' => 'Invoice to delete',
-// 'form.invoice.invoice_entries' => 'Invoice entries',
+
+// Invoice delete form. See example at https://timetracker.anuko.com/invoice_delete.php
+'form.invoice.invoice_to_delete' => 'Zu löschende Rechnung',
+// TODO: check if form.invoice.invoice_entries is translated correctly.
+// This is a label for a dropdown at https://timetracker.anuko.com/invoice_delete.php with 2 options:
+// "delete" and "do not delete".
+// The settings tells whether we are deleting invoiced items when deleting an invoice.
+// If we select "do not delete" then the items stay, and can be included in another invoice.
+'form.invoice.invoice_entries' => 'Rechnungseintrag',