All doctoral theses read at UPC they are kept in electronic format and / or in paper format. With the exception of those with confidentiality or temporary embargo clauses, almost all of them can be consulted either online, in libraries that keep a paper copy or in the Archive.
Taking this into account, to consult a doctoral thesis of the UPC:
You can consult the doctoral theses of:
You can also use it Teseo to consult the reference of all the theses read at the Spanish universities.