diff --git a/server/apps/research/serializers/article_serializer.py b/server/apps/research/serializers/article_serializer.py
index c55bd2e..43abe06 100644
--- a/server/apps/research/serializers/article_serializer.py
+++ b/server/apps/research/serializers/article_serializer.py
@@ -12,7 +12,11 @@ class ArticleSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Article
-        fields = '__all__'
+        fields = [
+            'id', 'slug', 'title', 'authors', 'thumb', 
+            'categories', 'summary', 'content', 
+            'status', 'views', 'created_at', 'updated_at'
+        ]
 
 class ArticleCreateUpdateSerializer(serializers.ModelSerializer):
     """Serializer for creating and updating articles."""
diff --git a/server/apps/research/views.py b/server/apps/research/views.py
index f4c2628..b654143 100644
--- a/server/apps/research/views.py
+++ b/server/apps/research/views.py
@@ -33,7 +33,7 @@ def get_queryset(self):
         return Article.objects.filter(status='ready')
 
     # Custom action to retrieve articles by slug or UUID
-    @action(detail=False, methods=['get'], url_path='(?P<identifier>[-\w0-9a-fA-F]+)')
+    @action(detail=False, methods=['get'], url_path=r'(?P<identifier>[-\w0-9a-fA-F]+)')
     def retrieve_by_identifier(self, request, identifier=None):
         """Retrieve an article by slug or UUID."""
         try:
@@ -57,4 +57,4 @@ def is_valid_uuid(self, value):
             uuid.UUID(value)
             return True
         except ValueError:
-            return False
\ No newline at end of file
+            return False
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