This is the second of two articles examining the statistical characteristics of the support for a word square (the sample size needed to produce, on the average, a single word square). In the preceding article, published in the August 1993 Word Ways, a method was developed for calculating the support from small sample sizes - ones large enough to typically produce only a few squares, rather than the thousands of millions found by Chris Long.
Eckler, A. Ross
"Word-Square Support: Part 2,"
Word Ways: Vol. 26
, Article 16.
Available at: https://digitalcommons.butler.edu/wordways/vol26/iss4/16