diff --git a/doc/source/multiple.md b/doc/source/multiple.md
index 82ac481f..91c1bcc8 100644
--- a/doc/source/multiple.md
+++ b/doc/source/multiple.md
@@ -13,13 +13,13 @@ waste_collection_schedule:
   sources:
     - name: multiple
       args:
-        - SOURCE_NAME: SOURCE_ARGS
-        - SOURCE_NAME: SOURCE_ARGS
+        SOURCE_NAME: SOURCE_ARGS
+        SOURCE_NAME: SOURCE_ARGS
         ...
         # or (can be mixed)
-        - SOURCE_NAME: 
-            - SOURCE_ARGS
-            - SOURCE_ARGS
+        SOURCE_NAME: 
+          - SOURCE_ARGS
+          - SOURCE_ARGS
             ...
 ```
 
@@ -28,7 +28,7 @@ waste_collection_schedule:
 **SOURCE_NAME**  
 *(string) (required)*
 
-The name of the source to include.
+The name of the source to include. **Note:** You cannot use the same source name multiple times (use the second syntax instead).
 
 **SOURCE_ARGS**  
 *(dict) (required)*
@@ -44,16 +44,16 @@ waste_collection_schedule:
   sources:
     - name: multiple
       args:
-        - static:
-            - type: "Dates only"
-              dates:
-                - "2022-01-01"
-                - "2022-01-01"
-            - type: "First day of month"
-              frequency: "MONTHLY"
-              interval: 1
-              start: "2022-01-01"
-              until: "2022-12-31"
+        static:
+          - type: "Dates only"
+            dates:
+              - "2022-01-01"
+              - "2022-01-01"
+          - type: "First day of month"
+            frequency: "MONTHLY"
+            interval: 1
+            start: "2022-01-01"
+            until: "2022-12-31"
 ```
 
 ### Two ics sources
@@ -63,10 +63,10 @@ waste_collection_schedule:
   sources:
     - name: multiple
       args:
-        - ics:
-            - url: "https://servicebetrieb.koblenz.de/abfallwirtschaft/entsorgungstermine-digital/entsorgungstermine-2023-digital/altstadt-2023.ics?cid=2ui7"
-            - url: "https://recollect.a.ssl.fastly.net/api/places/BCCDF30E-578B-11E4-AD38-5839C200407A/services/208/events.en.ics"
-              split_at: "\\, (?:and )?|(?: and )"
+        ics:
+          - url: "https://servicebetrieb.koblenz.de/abfallwirtschaft/entsorgungstermine-digital/entsorgungstermine-2023-digital/altstadt-2023.ics?cid=2ui7"
+          - url: "https://recollect.a.ssl.fastly.net/api/places/BCCDF30E-578B-11E4-AD38-5839C200407A/services/208/events.en.ics"
+            split_at: "\\, (?:and )?|(?: and )"
 ```
 
 ### One Static and ics source each
@@ -75,28 +75,29 @@ waste_collection_schedule:
 waste_collection_schedule:
   sources:
     - name: multiple
-        - static:
-            type: "Dates only"
-            dates:
-              - "2022-01-01"
-              - "2022-01-01"
-        - ics:
-            url: "https://sperrmuell.erlensee.de/?type=reminder"
-            method: "POST"
-            params:
-              street: 8
-              eventType[]:
-                - 27
-                - 23
-                - 19
-                - 20
-                - 21
-                - 24
-                - 22
-                - 25
-                - 26
-              timeframe: 23
-              download: "ical"
+      args:
+        static:
+          type: "Dates only"
+          dates:
+            - "2022-01-01"
+            - "2022-01-01"
+        ics:
+          url: "https://sperrmuell.erlensee.de/?type=reminder"
+          method: "POST"
+          params:
+            street: 8
+            eventType[]:
+              - 27
+              - 23
+              - 19
+              - 20
+              - 21
+              - 24
+              - 22
+              - 25
+              - 26
+            timeframe: 23
+            download: "ical"
 ```
 
 ### Three "normal" sources
@@ -105,15 +106,16 @@ waste_collection_schedule:
 waste_collection_schedule:
   sources:
     - name: multiple
-        - lund_se:
-            street_address: "Lokföraregatan 7, LUND (19120)"
-        - meinawb_de:
-            city: "Oberzissen"
-            street: "Lindenstrasse"
-            house_number: "1"
-        - jumomind_de:
-            service_id: "mymuell"
-            city: "Bad Wünnenberg-Bleiwäsche"
+      args:
+        lund_se:
+          street_address: "Lokföraregatan 7, LUND (19120)"
+        meinawb_de:
+          city: "Oberzissen"
+          street: "Lindenstrasse"
+          house_number: "1"
+        jumomind_de:
+          service_id: "mymuell"
+          city: "Bad Wünnenberg-Bleiwäsche"
 ```
 
 ### Two "normal" sources with two static sources
@@ -122,20 +124,21 @@ waste_collection_schedule:
 waste_collection_schedule:
   sources:
     - name: multiple
-        - lund_se:
-            street_address: "Lokföraregatan 7, LUND (19120)"
-        - nawma_sa_gov_au:
-            street_number: "128"
-            street_name: "Bridge Road"
-            suburb: "Pooraka"
-        - static:
-            - type: "Dates only"
-              dates:
-                - "2024-01-01"
-                - "2024-01-24"
-            - type: "First day of month"
-              frequency: "MONTHLY"
-              interval: 1
-              start: "2022-01-01"
-              until: "2022-12-31"
+      args:
+        lund_se:
+          street_address: "Lokföraregatan 7, LUND (19120)"
+        nawma_sa_gov_au:
+          street_number: "128"
+          street_name: "Bridge Road"
+          suburb: "Pooraka"
+        static:
+          - type: "Dates only"
+            dates:
+              - "2024-01-01"
+              - "2024-01-24"
+          - type: "First day of month"
+            frequency: "MONTHLY"
+            interval: 1
+            start: "2022-01-01"
+            until: "2022-12-31"
 ```