diff --git a/mr/ubB/link b/mr/ubB/link
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--- /dev/null
+++ b/mr/ubB/link
@@ -0,0 +1,3 @@
+https://gieseanw.wordpress.com/2012/11/15/reeds-shepp-cars/
+
+https://gieseanw.wordpress.com/2012/10/21/a-comprehensive-step-by-step-tutorial-to-computing-dubins-paths/