You are correct.
Sarproz is also doing some further checks. E.g. in the recent releases it tells you explicitly if there was any kind of precipitation in the date chosen as Master. It’s important to avoid any possible source of errors in your Master image.
Also, it would be a good practice to chose the Master image in winter, when the atmospheric noise is supposed to be smaller.
However, in some cases you may discover later that your Master had orbital problems. This may generate spurious ramps in the parameters estimation. If this happens, you have many ways in Sarproz to remove such ramps later on in the processing.
Your reference is fine.
Here you find a simple multi-temporal InSAR chapter that I’ve recently written: http://we.tl/oIkFzKzK5O
Maybe you can find there some references more…