diff --git a/fpb.json b/fpb.json
index f8b86d5..32c1e4f 100644
--- a/fpb.json
+++ b/fpb.json
@@ -22936,6 +22936,14 @@
                            "notes": [
                               ":construction: *in process*"
                            ]
+                        },
+                        {
+                           "url": "https://www.ime.usp.br/~pf/otimizacao-combinatoria/",
+                           "title": "Otimização Combinatória",
+                           "author": "Paulo Feofiloff",
+                           "notes": [
+                              "PDF"
+                           ]
                         }
                      ],
                      "subsections": []