Now that we have GenAI a whole book of random stuff is cheap, but back then it was expensive (and coordinating a group sounds even more expensive!), so we assume it must've had some meaning to someone, and get nerd-sniped into finding a reading.

(on the other hand: https://www.rand.org/pubs/monograph_reports/MR1418.html . It's amusing to see "errata"!)