Don't know how to succeed with the Luigi site - this is a hard to find little book. I see only used hardback available on Amazon. Keep trolling...ebay as well.....

I didn't know about this video until now.....

https://www.youtube.com/watch?v=WvbZUof4Cuk

"Giovanni Sarpellon presents a lecture on mosaic and murrini glass, with the emphasis on 19th century Venetian glass in his collection, which is featured in the 1995 special exhibition at The Corning Museum of Glass. He includes the work of such artists as Francini, Bigaglia, Francesco Moretti and son, Giuseppe Barovier. His interest is mostly in the portrait canes."

Also in the same search happened by this demo by Loren Stump, modern master, with his interpretation / technique:

https://www.youtube.com/watch?v=NRThXub6piE