60a1537d4d simtaim
https://colab.research.google.....com/drive/1mxpWGiP0k
https://colab.research.google.....com/drive/1ISRmsEAmm
https://colab.research.google.....com/drive/14efglXw1Z
https://colab.research.google.....com/drive/1S9VqWkZGr
https://colab.research.google.....com/drive/1P2Hx8dpIv
http://blog.x-code.name/2008/05/08/22/