Desperate here. I desperately need any information or textbooks on upper extremity prosthesis for forearm amputees.

Someone on /sci/ posted a marvelous textbook pdf but the link doesn't work anymore and the thread isn't archived, 404.

I need all the information I can get on any kind of arm prosthesis in book form for research but I've only found a few textbooks to scour through so far. Please, even a point in the right direction would help.

There was some kind of website that had access to all the published research works of most major institutions but I can't find the link anymore either. Please help me on this.