In the February 1973 issue of Word Ways, I posed the problem of constructing a tautonymic 10 x 10 word square consisting entirely of words and names taken from referenced works published since 1950: a modern, space-age word square.
Borgmann, Dmitri A.
"A 100-Letter Word Square,"
Word Ways: Vol. 6
, Article 8.
Available at: http://digitalcommons.butler.edu/wordways/vol6/iss3/8