fix paper

papers.py

@@ -86,9 +86,9 @@ class PaperList:
     ]
 
     def __init__(self, df: pd.DataFrame):
-        self.df_raw = dfcolumn_names
+        self.df_raw = df
         self._prettifier = Prettifier()
-        self.df_prettified = self._prettifier(df).loc[:, self.]
+        self.df_prettified = self._prettifier(df).loc[:, self.column_names]
 
     @property
     def column_names(self):