I have made available pdf’s of all of the parts of Kusumoto’s dissertation on tense. The first chapter in particular is what we will read when we turn to the semantics of tense in a couple of weeks. The files are in a protected area of the website, so you will need to use the login information, which will be send via email.
Kiyomi Kusumoto: 1999. “Tense in Embedded Contexts”. UMass Amherst PhD Dissertation.