greetings.
the webpage at:
http://step.esa.int/main/doc/tutorials/esa-training-courses/
has a link to:
Synthetic Aperture Radar and SAR Interferometry
Practical exercises at ESA Earth Observation Summer School – Earth System Monitoring and Modelling, Frascati, Italy (1-12 August, 2016).
which seems unreachable (404):
https://earth.esa.int/web/eo-summer-school/home
just thought you might want to replace or remove it.
thanks,
-Felipe.