Per your link:

>"Although no evidence of the veracity of Witkowski’s statements has been produced, they reached a wider audience when they were retold by British author Nick Cook, who added his own views to Witkowski’s statements in The Hunt for Zero Point.[4]"

The WW2 "Bell" experiment narrative was actually my largest complaint with Cook's book. While it makes for a fantastic story that's pretty much screenplay material, it's very unlikely to be true.