||The ARRL publishes a journal for members called QST.
I wrote an article about the Morse Code Teaching Machine that QST published in May, 1977. In this letter they acknowledge my submission.
I later spoke by phone with someone at the ARRL who told me how excited they were to get the article. He told me that he had asked their training expert what he might expect of a training computer program. Everything that was requested I had already done.