I am glad to announce that the UKON-AALTO collaboration on the ultra-sensitive thermometry is about to result in a nice publication. If you are interested in how to measure low temperatures by using superconducting proximity structures, check out our manuscript, which appeared on arxiv, on the following link.
I would like to thank to Wolfgang (UKON) and Jukka and Bayan (AALTO) for such a nice and inspiring collaboration. Cheers!