diff --git a/README.md b/README.md
index 70a49f9..5ac8442 100755
--- a/README.md
+++ b/README.md
@@ -577,6 +577,7 @@ Courses
 - [Graduate Complexity Theory at CMU](https://www.youtube.com/playlist?list=PLm3J0oaFux3b8Gg1DdaJOzYNsaXYLAOKH)
 - [Great Ideas in Theoretical Computer Science at CMU ](https://www.youtube.com/playlist?list=PLm3J0oaFux3aafQm568blS9blxtA_EWQv)
 - [Analysis of Boolean Functions at CMU](https://www.youtube.com/playlist?list=PLm3J0oaFux3YypJNaF6sRAf2zC1QzMuTA)
+- [Theoretical Computer Science (Bridging Course)(Tutorial) - SS 2015](http://ais.informatik.uni-freiburg.de/teaching/ss15/bridging/)
 
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@@ -745,7 +746,6 @@ Courses
 - [Biometrics - IIT Kanpur](https://nptel.ac.in/courses/106104119/)
 - [Quantitative Big Imaging 2019 ETH Zurich](https://www.youtube.com/playlist?list=PLTWuXgjdOrnmXVVQG5DRkVeOIGOcTmCIw)
 - [Multiple View Geometry in Computer Vision](https://www.youtube.com/playlist?list=PLyH-5mHPFffFvCCZcbdWXAb_cTy4ZG3Dj)
-- [Photogrammetry Course (2015/16) - Bonn University](https://www.youtube.com/playlist?list=PLgnQpQtFTOGRsi5vzy9PiQpNWHjq-bKN1)
 
 
 
@@ -820,6 +820,9 @@ Courses
 - [SLAM Course (2013) - Bonn University](https://www.youtube.com/playlist?list=PLgnQpQtFTOGQrZ4O5QzbIHgl3b1JHimN_)
 - [ENGR486 Robot Modeling and Control (2014W)](https://www.youtube.com/playlist?list=PLJzZfbLAMTelwaLxFXteeblbY2ytU2AxX)
 - [Robotics by Prof. D K Pratihar - IIT Kharagpur](https://www.youtube.com/playlist?list=PLbRMhDVUMngcdUbBySzyzcPiFTYWr4rV_)
+- [Introduction to Mobile Robotics - SS 2019 - Universität Freiburg](http://ais.informatik.uni-freiburg.de/teaching/ss19/robotics/)
+- [Robot Mapping - WS 2018/19 - Universität Freiburg](http://ais.informatik.uni-freiburg.de/teaching/ws18/mapping/)
+- [Mechanism and Robot Kinematics - IIT Kharagpur](https://nptel.ac.in/courses/112/105/112105236/)
 
 
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