diff --git a/configs/h2rbox_v2/README.md b/configs/h2rbox_v2/README.md
index b2b1e3730..7e98e704e 100644
--- a/configs/h2rbox_v2/README.md
+++ b/configs/h2rbox_v2/README.md
@@ -1,6 +1,6 @@
 # H2RBox-v2
 
-> [H2RBox-v2: Boosting HBox-supervised Oriented Object Detection via Symmetric Learning](https://arxiv.org/pdf/2304.04403)
+> [H2RBox-v2: Incorporating Symmetry for Boosting Horizontal Box Supervised Oriented Object Detection](https://arxiv.org/pdf/2304.04403)
 
 <!-- [ALGORITHM] -->
 
@@ -44,7 +44,7 @@ HRSC
 
 ```
 @misc{yu2023h2rboxv2,
-title={H2RBox-v2: Boosting HBox-supervised Oriented Object Detection via Symmetric Learning},
+title={H2RBox-v2: Incorporating Symmetry for Boosting Horizontal Box Supervised Oriented Object Detection},
 author={Yi Yu and Xue Yang and Qingyun Li and Yue Zhou and Gefan Zhang and Feipeng Da and Junchi Yan},
 year={2023},
 eprint={2304.04403},
diff --git a/configs/kfiou/README.md b/configs/kfiou/README.md
index 9f18c86a1..e26eaeb7e 100644
--- a/configs/kfiou/README.md
+++ b/configs/kfiou/README.md
@@ -1,6 +1,6 @@
 # KFIoU
 
-> [The KFIoU Loss for Rotated Object Detection](https://arxiv.org/pdf/2101.11952.pdf)
+> [The KFIoU Loss for Rotated Object Detection](https://arxiv.org/pdf/2201.12558.pdf)
 
 <!-- [ALGORITHM] -->
 
diff --git a/configs/sasm_reppoints/README.md b/configs/sasm_reppoints/README.md
index 6045c2bf1..0afa797e7 100644
--- a/configs/sasm_reppoints/README.md
+++ b/configs/sasm_reppoints/README.md
@@ -1,6 +1,6 @@
 # SASM
 
-> [Shape-Adaptive Selection and Measurement for Oriented Object Detection](https://www.aaai.org/AAAI22Papers/AAAI-2171.HouL.pdf)
+> [Shape-Adaptive Selection and Measurement for Oriented Object Detection](https://cdn.aaai.org/ojs/19975/19975-13-23988-1-2-20220628.pdf)
 
 <!-- [ALGORITHM] -->