diff --git a/create_faechersystematik_ttl.py b/create_faechersystematik_ttl.py
index 00c9458..b3d1b98 100755
--- a/create_faechersystematik_ttl.py
+++ b/create_faechersystematik_ttl.py
@@ -27,6 +27,23 @@ def extract_preflabel_translations(current_ttl):
         pref_label_dict_list.append(pref_label_dict)
     return pref_label_dict_list
 
+def extract_deprecated_notations(current_ttl):
+    g_old = Graph()
+    g_old.parse(current_ttl, format="ttl")
+    qres = g_old.query(
+        """
+        PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
+        PREFIX owl: <http://www.w3.org/2002/07/owl#>
+        PREFIX :  <https://w3id.org/kim/hochschulfaechersystematik/>
+
+        SELECT *
+           WHERE { 
+                    ?concept   owl:deprecated true ; 
+                    ?p ?o . 
+           }""")
+
+    return qres
+
 def add_pref_labels_lang(level_dict_list, current_pref_labels_dict):
     for idx, i in enumerate(level_dict_list):
         notation = level_dict_list[idx]['notation']
@@ -41,6 +58,7 @@ def add_pref_labels_lang(level_dict_list, current_pref_labels_dict):
 # extract translations of prefLabels
 current_hfs_file = "https://github.com/dini-ag-kim/hochschulfaechersystematik/blob/master/hochschulfaechersystematik.ttl?raw=true"
 lang_preflabel_list = extract_preflabel_translations(current_hfs_file)
+hfs_deprecated_notations = extract_deprecated_notations(current_hfs_file)
 
 # extract hfs data from destatis files
 url_1st_level = "https://github.com/dini-ag-kim/destatis-schluesseltabellen/blob/main/studierende/Faechergruppe.csv?raw=true"
@@ -143,4 +161,9 @@ def add_pref_labels_lang(level_dict_list, current_pref_labels_dict):
 g.add((URIRef('n0'), skos['notation'], Literal('0')))
 g.add((URIRef('scheme'), skos['hasTopConcept'], (URIRef('n0'))))
 g.bind("dct", DCTERMS)
+
+# add deprecated notations
+for row in hfs_deprecated_notations:
+    g.add((URIRef(row.concept), row.p, row.o))
+
 g.serialize('hochschulfaechersystematik.ttl', format='turtle')
\ No newline at end of file
diff --git a/hochschulfaechersystematik.ttl b/hochschulfaechersystematik.ttl
index 07f04d2..cffbfd5 100644
--- a/hochschulfaechersystematik.ttl
+++ b/hochschulfaechersystematik.ttl
@@ -1,8 +1,10 @@
 @base <https://w3id.org/kim/hochschulfaechersystematik/> .
 @prefix dct: <http://purl.org/dc/terms/> .
+@prefix owl: <http://www.w3.org/2002/07/owl#> .
 @prefix schema: <https://schema.org/> .
 @prefix skos: <http://www.w3.org/2004/02/skos/core#> .
 @prefix vann: <http://purl.org/vocab/vann/> .
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
 
 <scheme> a skos:ConceptScheme ;
     dct:alternative "Hochschulfächersystematik"@de ;
@@ -1498,7 +1500,9 @@
     skos:broader <n39> ;
     skos:inScheme <scheme> ;
     skos:notation "128" ;
-    skos:prefLabel "Physik"@de, "Physics"@en, "Фізика"@uk .
+    skos:prefLabel "Physik"@de,
+        "Physics"@en,
+        "Фізика"@uk .
 
 <n129> a skos:Concept ;
     skos:broader <n25> ;
@@ -2276,6 +2280,26 @@
         "Automotive Technology"@en,
         "Автомобільний транспорт"@uk .
 
+<n237> a skos:Concept ;
+    dct:isReplacedBy <n312> ;
+    owl:deprecated true ;
+    skos:broader <n37> ;
+    skos:inScheme <scheme> ;
+    skos:notation "237" ;
+    skos:prefLabel "Mathematische Statistik/Wahrscheinlichkeitsrechnung"@de,
+        "Mathematical statistics/probability calculation"@en,
+        "Математична статистика/Теорія ймовірності"@uk .
+
+<n241> a skos:Concept ;
+    owl:deprecated true ;
+    skos:broader <n63> ;
+    skos:inScheme <scheme> ;
+    skos:notation "241" ;
+    skos:note "Integrated into 211"@en ;
+    skos:prefLabel "Kerntechnik/Kernverfahrenstechnik"@de,
+        "Nuclear technology/nuclear process engineering"@en,
+        "Атомна інженерія/Інженерія ядерних процесів"@uk .
+
 <n242> a skos:Concept ;
     skos:broader <n66> ;
     skos:inScheme <scheme> ;
@@ -2544,7 +2568,9 @@
     skos:broader <n18> ;
     skos:inScheme <scheme> ;
     skos:notation "292" ;
-    skos:prefLabel "Islamische Studien/Islamische Theologie"@de, "Islamic Studies/Islamic Theology"@en, "Ісламознавство"@uk .
+    skos:prefLabel "Islamische Studien/Islamische Theologie"@de,
+        "Islamic Studies/Islamic Theology"@en,
+        "Ісламознавство"@uk .
 
 <n294> a skos:Concept ;
     skos:broader <n72> ;