This is the way that classes were presented in the statically generated hyperwebs. in this case we are looking at the class Thesis in the Bibliographic-data ontology. In this old version of ontology HTMLification we did not display any inherited information that can be seen in italics in this worked example.
An official report on a bout of graduate work for which one receives a degree, published by the university. Never mind that some fields make a big deal about the difference between dissertations and theses. From the bibliographic perspective, they are both of the same family.
If it is cited as a TR, it is a TR.
One can imagine adding a cross-reference field to references that points to associated documents or other references.