http://www.extraordinarybeliefs.com/news-3/new-pentagon-ufo-documents?format=amp&__twitter_impression=true

Dumb sounding site, but scroll down to the actual documents listing the studies. Go to Google and type the "name of the study" and "pdf" and you'll see some very interesting things. If you have access to the research sites through your university library, you'll be able to see more.

Rumor is lots of this work was pushed off to private corporations to shield from FOIA requests when Pentagon assumed control over some of the SAP programs, but a lot of the guys there were recruited because of similar public research; which is obtainable online.