There is an on-line publication, Driven To Write, which I believe is based in the UK. They have extensive interest in Lancias, and have written several articles on them.
The most recent is on the Beta, and well worth reading - not to mention the extensive comments that followed, a surprising amount of interest:
https://driventowrite.com/2021/09/27/deserving-beta-part-one/There are also articles in their archives, on the Flavia and Thema, among others. Recommended.