diff --git a/line.py b/line.py
index 8641f37..5752c71 100644
--- a/line.py
+++ b/line.py
@@ -144,15 +144,25 @@ class Line(SecondUomMixin, metaclass=PoolMeta):
         return result
 
     @classmethod
-    def get_counterpart_values(cls, line, values={}):
+    def get_counterpart_values(cls, line, splitline=None, values={}):
         """ add quantity to counterpart
         """
-        result = super(Line, cls).get_counterpart_values(line, values)
+        result = super(Line, cls).get_counterpart_values(
+                line,
+                splitline = splitline,
+                values = values
+            )
 
         line_uom = getattr(line.quantity_uom, 'id', None)
         booktransf_uom = getattr(getattr(line.booktransf, 'quantity_uom', {}), 'id', None)
 
-        if booktransf_uom is None:
+        if getattr(splitline, 'quantity', None) is not None:
+            # we add values to the counterpart of a splitbooking-line
+            result.update({
+                'quantity': splitline.quantity,
+                'quantity_2nd_uom': None,
+                })
+        elif booktransf_uom is None:
             # counterpart-cashbook has no uom -> no quantity
             result.update({
                 'quantity': None,
diff --git a/tests/test_book.py b/tests/test_book.py
index 4b2ec72..9a93626 100644
--- a/tests/test_book.py
+++ b/tests/test_book.py
@@ -1390,11 +1390,20 @@ class CbInvTestCase(CashbookTestCase, InvestmentTestCase):
         self.assertEqual(books[0].lines[0].splitlines[1].quantity, Decimal('2.5'))
         self.assertEqual(books[0].lines[0].splitlines[1].booktransf.rec_name,
             'Book 2 | -6.00 usd | Open | -2.50 u')
-        self.assertEqual(len(books[0].lines[0].references), 0)
+        self.assertEqual(len(books[0].lines[0].references), 1)
+        self.assertEqual(books[0].lines[0].references[0].rec_name,
+            '05/01/2022|to|-6.00 usd|from cashbook [Book 1 | 11.00 usd | Open | 4.00 u]|2.50 u')
         self.assertEqual(books[0].lines[0].reference, None)
 
-        self.assertEqual(books[1].rec_name, 'Book 2 | 0.00 usd | Open | 0.00 u')
-        self.assertEqual(books[1].balance_all, Decimal('0.0'))
-        self.assertEqual(len(books[1].lines), 0)
+        self.assertEqual(books[1].rec_name, 'Book 2 | -6.00 usd | Open | -2.50 u')
+        self.assertEqual(books[1].balance_all, Decimal('-6.0'))
+        self.assertEqual(len(books[1].lines), 1)
+        self.assertEqual(books[1].lines[0].rec_name,
+            '05/01/2022|to|-6.00 usd|from cashbook [Book 1 | 11.00 usd | Open | 4.00 u]|2.50 u')
+
+    # TODO:
+    # - splitbuchung mit unterschiedlichen einheiten einer kategorie
+    # - splitbuchung mit unterschiedlichen einheiten verschiedener kategorien
+    # in/out-splitbuchung
 
 # end CbInvTestCase