After performing a small research, I am sorry to inform you that none of the aforementioned titles by Soares et al. has survived a Google Search. The same happens when you search, for example, "Rui Soares". The only results found are discussion forums like this page. Sadly, I have to conclude that the sources you are citing are either false, mistyped or intentionally modified by another user. Please provide valid sources in order for other users to stop reverting changes about Lionese language.