There's so many references that this could take so long you'd never want to read to the end. Scott Santens has a few articles on it:
There's also his book "Let There Be Money" available through this same site:
www.scottsantens.com/basic-income...

There's also the fact that the cost of most UBIs and GLIs is about a third the cost of the "back of the envelope" gross cost.

There's the savings I've talked about before which come up in this article as well where a unconditional system saved $410,000 for the year.
www.cbc.ca/news/canada/...