In a letter dated 16 Mar 2005, Anil proposed constructing word cubes consisting of six word squares, one on each cube face, with edge words shared by squares on adjacent faces. To avoid confusion with the word cubes introduced by Darryl Francis in the Aug 1971 Word Ways, I propose that these structures be called cubic word squares. (Darryl's n-by-n-by-n word cube consists of a set of 3n word squares oriented in three different planes, having a total of 3n2 words.)
Eckler, A. Ross
"Cubic Word Squares,"
Word Ways: Vol. 42
, Article 4.
Available at: https://digitalcommons.butler.edu/wordways/vol42/iss1/4