In my article "Transposals of 15 or More Letters" in the February 1989 issue of Word Ways, I presented a list of 560 trivial and 44 nontrivial transposals. In this follow-up article, I discuss the nontrivial transposals in more detail. I also present the longest nontrivial subtransposals, transadditions, and transdeletions, all of which I discovered while compiling the list of transposals in 1987 and 1988.
"Beyond Long Nontrivial Transposals,"
Word Ways: Vol. 22
, Article 11.
Available at: http://digitalcommons.butler.edu/wordways/vol22/iss2/11