At the end of the article at you can see a link :
which links to
Click it anfd you'll find all articles in the series
The last two were just published, but it seems there was some problems with publishing, since some content is missing
I contacted the editor and that will be rectified hopefully asap, so they will also be complete, witrh all images, tables and download code.
Also, you can check the articles on my website.
Regards,
Bogdan Zamfir