Academic papers and research projects
ArgoUML Publications is a list of all books, papers and articles featuring ArgoUML.
Jason Robbins dissertation about ArgoUML. This dissertation created the fundamental layer for ArgoUML. It is still a good read to get an understanding of the essential designs of ArgoUML.
Tiziana Allegrinis dissertation (in PDF) contains an overview over the architecture of ArgoUML and deals with generating code from state chart diagrams.